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Term used in chemistry
The coordination geometry of an atom is the geometrical pattern defined by the atoms around the central atom. The term is commonly applied in the field
Coordination_geometry
Molecular geometry
concept of octahedral coordination geometry was developed by Alfred Werner to explain the stoichiometries and isomerism in coordination compounds. His insight
Octahedral_molecular_geometry
Molecular geometry of five coplanar atoms
In chemistry, the square planar molecular geometry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds
Square planar molecular geometry
Square_planar_molecular_geometry
Central atom with four substituents located at the corners of a tetrahedron
In a tetrahedral molecular geometry, a central atom is located at the center with four substituents that are located at the corners of a tetrahedron. The
Tetrahedral molecular geometry
Tetrahedral_molecular_geometry
Compound with a metal center bound to ligands
related to Coordination compounds. Activated complex IUPAC nomenclature of inorganic chemistry Coordination cage Coordination geometry Coordination isomerism
Coordination_complex
Polymer consisting of repeating units of a coordination complex
dimensionality of the coordination polymer are determined by the linkers and the coordination geometry of the metal center. Coordination numbers are most often
Coordination_polymer
Parameter used to characterize molecular geometry
In coordination chemistry and crystallography, the geometry index or structural parameter (τ) is a number ranging from 0 to 1 that indicates what the geometry
Geometry_index
Symbol used in coordination chemistry
symbol is sometimes used in coordination chemistry and crystallography to indicate the approximate coordination geometry around the central atom. One
Polyhedral_symbol
Molecular structure having atoms at the centre and corners of a pentagonal bipyramid
[page needed] Pentagonal bipyramids are claimed to be promising coordination geometries for lanthanide-based single-molecule magnets, since they present
Pentagonal bipyramidal molecular geometry
Pentagonal_bipyramidal_molecular_geometry
Shape of molecular compounds
prism. Like with other high coordination numbers, eight-coordinate compounds are often distorted from idealized geometries, as illustrated by the structure
Square antiprismatic molecular geometry
Square_antiprismatic_molecular_geometry
Shape in molecular geometry
bicapped trigonal prismatic molecular geometry is the ZrF4− 8 ion. The bicapped trigonal prismatic coordination geometry is found in the plutonium(III) bromide
Bicapped trigonal prismatic molecular geometry
Bicapped_trigonal_prismatic_molecular_geometry
Protein family
susceptible to oxidative damage. In its oxidized (Ni(III)) state, the coordination geometry of nickel is square pyramidal. The binding of histidine-1 as an
Nickel_superoxide_dismutase
Ionic compound made of a C2H5–O anion and a sodium cation
ball-and-stick model of layer stacking in the crystal structure of CH3CH2ONa coordination geometry at Na coordination geometry at O
Sodium_ethoxide
bidentate ligand with two sulfur atoms binding the metal atom. Here the coordination geometry of the six sulfur atoms around the molybdenum is similar to that
Trigonal prismatic molecular geometry
Trigonal_prismatic_molecular_geometry
Chemical compound
tetrahedral coordination geometry of bromine number 1 Distorted tetrahedral coordination geometry of bromine number 2 Tetrahedral coordination geometry of bromine
Strontium_bromide
All ligands directly bound to the central metal atom of a chemical complex
as the second coordination sphere for metal complexes. Coordination number Ligand cone angle Coordination geometry What Is A Coordination Compound? Zhao
Coordination_sphere
Inorganic compound
This dualism is an example of polymorphism. In each form, the coordination geometry at Zn and S is tetrahedral. The more stable cubic form is known
Zinc_sulfide
Chemical compound
050(5) Å (γ-form, anhydrous, 295 K) α = 90°, β = 101.35(8)°, γ = 90° Coordination geometry Octahedral (Na+, anhydrous) Thermochemistry Heat capacity (C) 112
Sodium_carbonate
Compact notation for chemical compounds
of subnetworks within the crystal, the coordination polyhedron (coordination geometry of the first coordination sphere) of each atom, and the structural
Chemical_formula
Chemical compound
Room temperature crystal structure and coordination geometry of potassium nitrate Unit cell Potassium coordination Nitrate coordination
Potassium_nitrate
Chemical compound
Crystal structure Cubic (bixbyite), cI80 Space group Ia3 (No. 206) Coordination geometry Octahedral Thermochemistry Std molar entropy (S⦵298) 99.08 J/mol·K
Yttrium(III)_oxide
Molecular geometry
a non-collinear arrangement of two adjacent bonds have bent molecular geometry, also known as angular or V-shaped. Certain atoms, such as oxygen, will
Bent_molecular_geometry
Molecular geometry of symmetry D_3h
In chemistry, trigonal planar is a molecular geometry model with one atom at the center and three atoms at the corners of an equilateral triangle, called
Trigonal planar molecular geometry
Trigonal_planar_molecular_geometry
Type of molecular geometry
In chemistry, T-shaped molecular geometry describes the structures of some molecules where a central atom has three ligands. Ordinarily, three-coordinated
T-shaped_molecular_geometry
Number of atoms, molecules or ions bonded to a molecule or crystal
not distinguish the geometry of such complexes, i.e. octahedral vs trigonal prismatic. For transition metal complexes, coordination numbers range from
Coordination_number
Chemical compound
dioxide, the Ti centers in titanium silicalite have tetrahedral coordination geometry. The material is a useful catalyst for the reaction of hydrogen
Silicalite
Chemical compound
solvents Soluble in chlorocarbons, acetone, and acetonitrile Structure Coordination geometry planar Dipole moment 0 D Hazards Occupational safety and health
Trichloroisocyanuric_acid
Chemical compound
diethyl ether, chloroform and benzene Structure Coordination geometry Tetrahedral molecular geometry at the nitrogen atom Hazards GHS labelling:[1] Pictograms
Choline_bitartrate
Chemical compound
tetrahydrofuran, toluene, benzene, dimethyl sulfoxide log P -2.88 Structure Coordination geometry 4 at boron atom Molecular shape Tetrahedral at boron atom Hazards
Sodium_triacetoxyborohydride
Chemical compound
and bind to Lewis acidic Cu surface sites in YBa2Cu3O7 to form stable coordination bonds. In 1987, shortly after it was discovered, physicist and science
Yttrium_barium_copper_oxide
Chemical compound
polymorphs. In the primary polymorph, α, iron adopts octahedral coordination geometry. That is, each Fe center is bound to six oxygen ligands. In the
Iron(III)_oxide
Chemical, compound of iron carbon and oxygen
bind to two Fe(II) centers, such that the Fe has an octahedral coordination geometry. The dependency of the solubility in water with temperature was
Iron(II)_carbonate
Chemical compound
chloride ions. In this framework, the Al centres exhibit octahedral coordination geometry. Yttrium(III) chloride adopts the same structure, as do a range
Aluminium_chloride
Class of chemical compounds composed of iron and oxygen
ferric (Fe(III)) or both. They adopt octahedral or tetrahedral coordination geometry. Only a few oxides are significant at the earth's surface, particularly
Iron_oxide
Chemical compound
attributed to several mechanisms: Complexation, since calcium ions form coordination complexes with pectin, a polysaccharide found in the cell wall and middle
Calcium_chloride
and Cu+, respectively. Each oxidation state prefers a distinct coordination geometry: whereas copper(II) is normally square planar and prefers hard bases
Entatic_state
Model for predicting molecular geometry
Haalan, A.; Hammel, A.; Rydpal, K.; Volden, H. V. (1990). "The coordination geometry of gaseous hexamethyltungsten is not octahedral". J. Am. Chem. Soc
VSEPR_theory
2005 edition of the Nomenclature of Inorganic Chemistry
central atom. For any coordination number above 2 more than one coordination geometry is possible. For example four coordinate coordination compounds can be
IUPAC nomenclature of inorganic chemistry 2005
IUPAC_nomenclature_of_inorganic_chemistry_2005
Chemical rule of thumb
resonance structure does obey the octet rule. In the trigonal planar coordination geometry, one p orbital points out of the bonding plane, and can only overlap
Octet_rule
Concept in organic chemistry
resulting intermediate: endo if it is on the ring and exo if not the coordination geometry at the attacked atom: digonal (linear), trigonal, or tetrahedral
Baldwin's_rules
Chemical compound
neptunium sites. Two sites have a coordination geometry of pentagonal bipyramidal, and the other has a coordination geometry of tetragonal bipyramidal. Neptunium(V)
Neptunium(V)_oxide
Any polyatomic anion containing silicon and oxygen
the tetrahedron is a common coordination geometry for silicon(IV) compounds, silicon may also occur with higher coordination numbers. For example, in the
Silicate
Chemical compound
phase) Space group I4/mmm (I phase) C2/c (II phase) C2/m (III phase) Coordination geometry 6 Thermochemistry Std molar entropy (S⦵298) 70 J/(mol·K) Std enthalpy
Calcium_carbide
Type of coordination complex
Transition metal ions serve as Lewis-acceptor units with preferred coordination geometries, and labile or rigid ligands serve as Lewis-donor molecules that
Supramolecular coordination complex
Supramolecular_coordination_complex
Chemical compound
atoms having a geometry of pentagonal bipyramidal, 2 U atoms per formula unit have distinct pentagonal bipyramidal coordination geometries, and the other
Triuranium_octoxide
Chemical compound with formula NaCl
Richens, D. T. and Sykes, A. G. (2003) "Metal Aqua Ions" Comprehensive Coordination Chemistry II Volume 1, pp. 515–555. doi:10.1016/B0-08-043748-6/01055-0
Sodium_chloride
Chemical compound
As 2O 3 + O 2 → 2 As 2O 4 It adopts a layer structure, and the coordination geometry of As(III) is triangular pyramid while As(V) is tetrahedral. NIOSH
Arsenic_tetroxide
Chemical compound
diethyl ether, benzene, toluene, ethanol log P 2.154 Structure Coordination geometry Tetragonal at C1, C2, and C3 Trigonal planar at N7, N8, and N9 Molecular
Nitroglycerin
Chemical compound
structure of cotunnite Space-filling model Coordination geometry of Pb2+ Coordination geometry of Cl− Coordination polyhedron of Pb2+ In the gas phase, PbCl2
Lead(II)_chloride
Chemical compound
is passed through the column, which displaces the His-tag from nickel coordination, freeing the His-tagged proteins. Imidazole is a suitable buffer for
Imidazole
Chemical compound
whereas V(CO)6 has 17 valence electrons. V(CO)6 adopts an octahedral coordination geometry and is isostructural with chromium hexacarbonyl, even though they
Vanadium_hexacarbonyl
Chemical compound
crystallizes from concentrated hydrochloric acid. The dihydrate is a coordination polymer. Each Fe center is coordinated to four doubly bridging chloride
Iron(II)_chloride
Chemical compound
{BaBr9} {BrBa4} {BrBa3} Ball-and-stick model Coordination number 9 4 3 Coordination geometry (7+2) coordination distorted tricapped trigonal prismatic distorted
Barium_bromide
Chemical compound
Structure Crystal structure Zinc blende Lattice constant a = 5.8687 Å Coordination geometry Tetrahedral Thermochemistry Heat capacity (C) 45.4 J/(mol·K) Std
Indium_phosphide
Chemical compound
derivatives of the type BrMn(CO)3L2. The complex adopts an octahedral coordination geometry. Manganese pentacarbonyl bromide is a precursor to the arene complexes
Manganese pentacarbonyl bromide
Manganese_pentacarbonyl_bromide
Molecular geometry
In chemistry, the tricapped trigonal prismatic molecular geometry describes the shape of compounds where nine atoms, groups of atoms, or ligands are arranged
Tricapped trigonal prismatic molecular geometry
Tricapped_trigonal_prismatic_molecular_geometry
Shape of certain five-ligand chemical complexes
Square pyramid geometry describes the shape of certain chemical compounds with the formula ML5 where L is a ligand. If the ligand atoms were connected
Square pyramidal molecular geometry
Square_pyramidal_molecular_geometry
Chemical compound naturally occurring as periclase
(cubic), cF8 Space group Fm3m, No. 225 Lattice constant a = 4.212Å Coordination geometry Octahedral (Mg2+); octahedral (O2−) Thermochemistry Heat capacity
Magnesium_oxide
Chemical compound
groups and two butyl groups coordinated to a tin(IV) atom. The coordination geometry at the tin center is tetrahedral. Based on the crystal structure
Dibutyltin_dilaurate
Chemical compound
tetrahedral coordination geometry of Co(II) distorted octahedral coordination geometry of Co(III) distorted tetrahedral coordination geometry of O
Cobalt(II,III)_oxide
Chemical compound
group R3c (No. 167) Lattice constant a = 478.5 pm, c = 1299.1 pm Coordination geometry octahedral Thermochemistry Heat capacity (C) 89.7248 J/(mol K) Std
Aluminium_oxide
Tetragonal form of silicon dioxide
of rutile (TiO2). The silicon in stishovite adopts an octahedral coordination geometry, being bound to six oxides. Similarly, the oxides are three-connected
Stishovite
Inorganic salt: MgCl2 and its hydrates
MgCl2(TMEDA) is another. In the coordination polymer with the formula MgCl2(dioxane)2, Mg adopts an octahedral geometry. The Lewis acidity of magnesium
Magnesium_chloride
Chemical compound
coordination, but it is octahedral when the compound is exfoliated. The metal ion in these compounds is surrounded by six Se2− ions. The coordination
Molybdenum_diselenide
Chemical compound
and β. In both forms, the palladium centres adopt a square-planar coordination geometry that is characteristic of Pd(II). Furthermore, in both forms, the
Palladium(II)_chloride
Chemical compound
two bidentate acetate groups and two bridging acetate groups. The coordination geometry at Pb is a monocapped square antiprism. The trihydrate thermally
Lead(II)_acetate
Chemical compound
Coordination geometry in lead(II) sulfate Lead coordination Sulfate coordination
Lead(II)_sulfate
Organic compound ((CH3)2CO); simplest ketone
3311 mPa·s at 20 °C 0.306 mPa·s (25 °C) 0.2562 mPa·s at 50 °C Structure Coordination geometry Trigonal planar at C2 Molecular shape Dihedral at C2 Dipole moment
Acetone
Chemical compound
eight oxygen atoms coming from four oxalate groups (giving it a coordination geometry of cubic). The plutonium atoms are bonded with both oxygen atoms
Plutonium(IV)_oxalate
Chemical compound
Antifluorite (face centered cubic), cF12 Space group Fm3m, No. 225 Coordination geometry Tetrahedral (Na+); cubic (O2−) Thermochemistry Heat capacity (C)
Sodium_oxide
Chemical compound
kg−1 Magnetic susceptibility (χ) −93.10·10−6 cm3/mol Structure Coordination geometry Tetragonal Molecular shape Tetrahedron Thermochemistry Heat capacity
Diiodomethane
Chemical compound
permanganic acid, HMnO4 Structure Crystal structure monoclinic Coordination geometry bitetrahedral Hazards Occupational safety and health (OHS/OSH):
Manganese_heptoxide
7-coordinate molecular geometry
In chemistry, the capped octahedral molecular geometry describes the shape of compounds where seven atoms or groups of atoms or ligands are arranged around
Capped octahedral molecular geometry
Capped_octahedral_molecular_geometry
Potassium compound and alternative to salt
centered cubic Space group Fm3m, No. 225 Lattice constant a = 629.2 pm Coordination geometry Octahedral (K+) Octahedral (Cl−) Thermochemistry Std molar entropy
Potassium_chloride
Chemical compound
oxalate ions and coordinated by three water molecules, having a coordination geometry of tricapped trigonal prismatic. A variable amount of water molecules
Plutonium(III)_oxalate
Chemical compound
oxalates, it is a coordination polymer. The oxalate ligands bridge of Co(OH2)2 centres. Each cobalt adopts octahedral coordination geometry. It is used in
Cobalt(II)_oxalate
Chemical element with atomic number 29 (Cu)
copper(I) iodide and iodine. 2 Cu2+ + 4 I− → 2 CuI + I2 Copper forms coordination complexes with ligands. In aqueous solution, copper(II) exists as [Cu(H
Copper
Chemical compound
pyramidal coordination environment with coordination number 5. Each carbonate ion bonds to 5 copper centres. Unit cell of CuCO3 Copper coordination environment
Copper(II)_carbonate
Chemical compound
ball-and-stick model of part of the crystal structure of XeO3 space-filling model coordination geometry of XeO3
Xenon_trioxide
Chemical compound
phase, arsenic triazide attains a coordination number of 7, different from the gas phase, which has a coordination number of 4. Related azido arsenic(III)
Arsenic_triazide
Chemical compound
Structure Crystal structure Cubic, cF8 Space group Fm3m, No. 225 Coordination geometry Octahedral Related compounds Related compounds Zirconium carbide
Titanium_carbide
8-coordinate molecular geometry
dodecahedral molecular geometry is the Mo(CN)4− 8 ion. Jeremy K. Burdett; Roald Hoffmann; Robert C. Fay (1978). "Eight-Coordination". Inorganic Chemistry
Dodecahedral molecular geometry
Dodecahedral_molecular_geometry
Chemical compound
VCl2 adopts the cadmium iodide structure, featuring octahedral coordination geometry. VBr2 and VI2 are structurally and chemically similar to the dichloride
Vanadium(II)_chloride
Chemical compound
104 °C (219 °F; 377 K) Structure Crystal structure I4mm, tetragonal Coordination geometry Tetragonal at B and N Molecular shape Tetrahedral at B and N Dipole
Ammonia_borane
Chemical compound of sulfur and oxygen
transition metal is in oxidation state 0 or +1. Many different bonding modes (geometries) are recognized, but in most cases, the ligand is monodentate, attached
Sulfur_dioxide
Chemical element with atomic number 74 (W)
Hammel, Andreas; Rypdal, Kristin; Volden, Hans V. (May 1990). "The coordination geometry of gaseous hexamethyltungsten is not octahedral". Journal of the
Tungsten
Chemical semiconductor compound
Space group C6v4-P63mc Lattice constant a = 318.9 pm, c = 518.6 pm Coordination geometry Tetrahedral Thermochemistry Std enthalpy of formation (ΔfH⦵298)
Gallium_nitride
Chemical compound
Zincblende Space group T2d-F43m Lattice constant a = 546.35 pm Coordination geometry Tetrahedral Thermochemistry Std molar entropy (S⦵298) 47.3 J/mol
Aluminium_phosphide
Chemical compound
Insoluble Structure Coordination geometry four triphenylphosphine monodentate ligands attached to a central Pd(0) atom in a tetrahedral geometry Molecular shape
Tetrakis(triphenylphosphine)palladium(0)
Tetrakis(triphenylphosphine)palladium(0)
Chemical compound
Crystal structure Monoclinic, mP32 Space group P121/n1, No. 14 Coordination geometry Octahedral (WVI) Trigonal planar (O2– ) Hazards Occupational safety
Tungsten_trioxide
Chemical compound
the solid state, the compound features platinum(IV) in octahedral coordination geometry. Platinum tetrafluoride vapour at 298.15 K consists of individual
Platinum_tetrafluoride
Chemical element with atomic number 80 (Hg)
been demonstrated to form linear coordination geometry, despite mercury's tendency to form tetrahedral molecular geometry with other ligands. This behavior
Mercury_(element)
Chemical compound
Crystal structure Halite (cubic), cF8 Space group Fm3m, No. 225 Coordination geometry Octahedral (Mn2+); octahedral (O2−) Thermochemistry Std molar entropy
Manganese(II)_oxide
Chemical compound
895 Structure Crystal structure Orthorhombic Space group Pna21 Coordination geometry 8 Hazards GHS labelling: Pictograms Signal word Warning Hazard statements
Calcium_peroxide
Chemical compound
Space group Pmn21 Lattice constant a = 6.115, b = 5.239, c = 4.855 Coordination geometry Tetrahedral (at all atoms) Thermochemistry Std enthalpy of formation
Lithium_phosphate
Chemical compound
(χ) −88.3·10−6 cm3/mol Structure Crystal structure Tetrahedral Coordination geometry 4 Thermochemistry Std molar entropy (S⦵298) 240 J·mol−1·K−1 Std
Silicon_tetrachloride
sometimes cages are casually referred to by their geometries. Of the named categories of coordination cages, cavitand cages and metalloprisms are some
Coordination_cage
Chemical compound
Structure Crystal structure Tetragonal Space group D174h, I4/mmm, tI6 Coordination geometry 6 Hazards GHS labelling: Pictograms Signal word Warning Hazard statements
Barium_peroxide
Chemical compound
Solubility slightly soluble in alcohol Acidity (pKa) 5.4 Structure Coordination geometry tetrahedral Hazards Occupational safety and health (OHS/OSH): Main
Potassium_hydrogen_phthalate
Chemical compound
range from 2.384 to 2.702 Å. Because of range of Ag-O distances the coordination geometry about the Ag+ centers is ambiguous. The nitrate groups bridge between
Silver_nitrate
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