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• Acid dissociation constant
  ...>2</sub>⁺ (aq), the vanadium is [[octahedral molecular geometry|octahedral]], 6-coordinate, whereas vanadic acid is [[tetrahedral molecular geometry|t
  76 KB (11,861 words) - 19:17, 21 September 2010
• Hemoglobin
  ...d > Coordination Chemistry] Retrieved on July 2, 2009</ref> completing the octahedral group of six ligands. Oxygen binds in an "end-on bent" geometry where one o ...ued that the binding of an oxygen molecule placed high-spin iron(II) in an octahedral field of strong-field ligands; this change in field would increase the [[Cr
  67 KB (9,844 words) - 19:17, 21 September 2010
• Trans effect
  ...ral complexes.<ref name=coe>Coe, B. J.; Glenwright, S. J. Trans-effects in octahedral transition metal complexes. ''Coordination Chemistry Reviews'' '''2000''',
  5 KB (796 words) - 19:17, 21 September 2010
• Crystal field theory
  ...octahedral]]; here six ligands form an octahedron around the metal ion. In octahedral symmetry the ''d''-orbitals split into two sets with an energy difference, ...towards the ''d''-orbitals, the energy splitting will be lower than in the octahedral case. [[Square planar molecular geometry|Square planar]] and other complex
  15 KB (2,403 words) - 19:17, 21 September 2010
• Coordination geometry
  ...the most common coordination geometries is [[octahedral molecular geometry|octahedral]], where six ligands are coordinated to the metal in a symmetrical distribu ...metry and each chloride has similarly six near neighbour sodium ions in an octahedral geometry. In [[periodic table (crystal structure)|metals]] with the body ce
  11 KB (1,577 words) - 19:18, 21 September 2010
• Tanabe-Sugano diagram
  </ref> now called [[Racah parameter]]s, to explain the absorption spectra of octahedral complex ions in a more quantitative way than had been achieved previously.< ...he relative order of energies is determined using [[Hund's rules]]. For an octahedral complex, the spherical, free ion term symbols split accordingly:<ref name=C
  23 KB (3,526 words) - 19:18, 21 September 2010
• Bailar twist
  ...aining three bidentate chelate rings. Such complexes typically adopt an [[octahedral molecular geometry]] and are thus [[chirality (chemistry)|chiral]].<ref>"Ba
  1 KB (152 words) - 19:18, 21 September 2010
• Ray-Dutt twist
  ...aining three bidentate chelate rings. Such complexes typically adopt an [[octahedral molecular geometry]] in their [[ground state]]s and are thus [[chiral]]. T
  1 KB (159 words) - 19:18, 21 September 2010
• Jahn–Teller effect
  ...up>2+</sup>, which might otherwise possess [[octahedral molecular geometry|octahedral]] geometry. The two axial Cu−O distances are 238 [[picometre|pm]], where The Jahn–Teller effect is most often encountered in [[octahedral complex]]es of the transition metals, and is very common in six-coordinate
  8 KB (1,101 words) - 19:18, 21 September 2010
• Bite angle
  ...m the ideal geometry of a complex based on [[VSEPR theory|VSEPR]] models. Octahedral complexes prefer angles near 90° and tetrahedral complexes near 110°. Si
  12 KB (1,706 words) - 19:18, 21 September 2010
• Ligand
  ...erner]] proposed, among other things, that Co(III) bears six ligands in an octahedral geometry. The theory allows one to understand the difference between coord ...rbitals (which may be filled, or partially filled with electrons). In an [[octahedral]] environment, the 5 otherwise degenerate d-orbitals split in sets of 2 and
  25 KB (3,607 words) - 19:18, 21 September 2010
• Denticity
  ...ties depending on their topology and the geometry of the metal center. For octahedral metals, the linear tetradentate trien can bind via three geometries. Tripod ...ship between "linear" bi-, tri- and tetradentate ligands (red) bound to an octahedral metal center. The structures marked with * are chiral owing to the backbon
  4 KB (572 words) - 19:18, 21 September 2010
• Tris(2-aminoethyl)amine
  [[Image:TrenCmpxs.png|thumb|left|300px|Structures of trigonal bipyramidal and octahedral complexes of the formulae M(tren)X (left, ''C''_3''v'' symmetry)
  4 KB (584 words) - 19:18, 21 September 2010
• Spin states (d electrons)
  === Octahedral complexes === ...en when the metal center is coordinated to weak field ligands. It is only octahedral coordination complexes which are centered around first row transition metal
  8 KB (1,140 words) - 19:18, 21 September 2010
• Dissociative substitution
  ...en [[coordinative unsaturation|coordinatively saturated]] and often have [[octahedral molecular geometry]]. The [[entropy of activation]] is characteristically p ...[Na(H₂O)₆]⁺ being one of the fastest for octahedral complexes. Charge has a significant influence on these rates but non-elect
  4 KB (630 words) - 19:18, 21 September 2010
• Coordination complex
  ...[Alfred Werner]] proposed in 1893 that Co(III) bears six [[ligands]] in an octahedral geometry. His theory allows one to understand the difference between coordi *[[Octahedral molecular geometry|Octahedral]] (orthogonal) or [[prism (geometry)|trigonal prismatic]] for six-coordinat
  25 KB (3,677 words) - 19:18, 21 September 2010
• D electron count
  ...I).png|right|thumb|400px|Ligand-Field scheme summarizing σ-bonding in the octahedral complex [Ti(H₂O)₆]³⁺.]] ...In this situation the complex geometry is [[Octahedral molecular geometry|octahedral]] which means the two of the d orbitals have the proper geometry to be invo
  11 KB (1,632 words) - 19:18, 21 September 2010
• Octahedral molecular geometry
  ...dral-3D-balls.png|thumb|right|200px|Idealized structure of a compound with octahedral coordination geometry.]] ...ematical sense due to the orientation of the N-H bonds, is referred to as octahedral.<ref>von Zelewsky, A. "Stereochemistry of Coordination Compounds" John Wile
  10 KB (1,633 words) - 19:18, 21 September 2010
• Eigen-Wilkins Mechanism
  ...dination chemistry governing the [[associative substitution]] reactions of octahedral complexes. It was discovered for substitution by ammonia of a chromium-(III
  3 KB (496 words) - 19:18, 21 September 2010
• Spin crossover
  ...''' Diagram illustrating the dependence of the HS or LS state on Δ of the octahedral ligand field splitting and the corresponding electron configuration.]] ...tal ion that can exist in either a LS or HS state is Fe³⁺ in an octahedral ligand field. Depending on the ligands that are coordinated to this complex
  29 KB (4,717 words) - 19:18, 21 September 2010

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