trans-{dichloro-tetrapyridine}vanadium(II) | 15225-42-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: trans-{dichloro-tetrapyridine}vanadium(II)
• 英文别名: dichloro tetrapyridin vanadium (II)；[VCl₂(pyridine)₄]；[VCl₂(py)₄]；VCl2(pyridine)4
• CAS: 15225-42-0；50436-99-2
• 化学式: C₂₀H₂₀Cl₂N₄V
• 分子量: 438.253
• InChiKey: LHFKYMHCIQIKTG-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为反应物：
  描述：

  bis(pyridine)-oxovanadium(IV)-dichloride 、 trans-{dichloro-tetrapyridine}vanadium(II) 以 乙腈 为溶剂， 以44%的产率得到
  参考文献：
  名称：

  Zhang, Yiping; Holm, Inorganic Chemistry, 1990, vol. 29, # 5, p. 911 - 917

  摘要：

  DOI：
• 作为产物：
  描述：

  氯化钒 在 pyridine 、 Zn 作用下， 以 吡啶 为溶剂， 以69%的产率得到trans-{dichloro-tetrapyridine}vanadium(II)
  参考文献：
  名称：

  Edema, Jilles J. H.; Stauthamer, Walter; Van Bolhuis, Fré, Inorganic Chemistry, 1990, vol. 29, # 7, p. 1302 - 1306

  摘要：

  DOI：

文献信息

• Synthesis and structure of early transition metal NHC complexes
  作者：Christian Lorber、Laure Vendier

  DOI：10.1039/b905056f

  日期：——

  complexes [M(N-2,6-iPr2-C6H3)Cl3(IMes)]-[HIMes]+ (M = V (12), Ti (13)) are obtained in modest yields from the treatment of [M(NR)Cl2(NHMe2)2] with 2 equiv. of IMes. Treatment of a toluene solution of V(NMe2)4 and an amide RC(O)NH2 (R = tBu, Ph) in the presence of an excess of Me3SiCl produces the terminal oxo complex V(O)Cl2(NHMe2)2 (13), which reacts with two equiv. of IMes to give the bis-NHC oxo-complex

  描述了由一个或两个IMes配体支撑的几种新的早期过渡金属（Ti，Zr，Hf和V）NHC配合物的合成和结构。M（NMe2）4与IMes.HCl反应生成化合物VCl2（NMe2）（IMes）2（2）和MCl2（NMe2）2（IMes）（M = V（3），Zr（4），Hf（5 ））。用2当量的TiCl3（THF）3处理 IMes和1个当量 LiNMe 2的制备得到钛（III）化合物TiCl 2（NMe 2）（IMes）2。VCl 3（THF）3与2当量的反应 甲苯中的IMes生成三价络合物VCl3（IMes）2（6），而VCl2（Py）4生成二价化合物VCl2（IMes）（Py）3（7），ZrCl4（THF）2生成ZrCl4（IMes） ）2（8）。由V（NR）Cl2（NHMe2）2或ZrCl2（NMe2）制备亚氨基化合物M（N-2,6-iPr2-C6H3）Cl2（NHMe2）（IMes）（M =
• Silanolato-Komplexe von Vanadium (III, IV) / Silanolato Complexes of Vanadium (III, IV)
  作者：Fritz Preuss、Peter Werle

  DOI：10.1515/znb-2002-0702

  日期：2002.7.1

  Syntheses of the homoleptic trimethylsilanolato complexes V(OSiMe3)3 and V(OSiMe3)4 are described. The thiovanadium(V)compound VS(OSiPh3)3 (11) is formed from [V(OSiPh3)3- (THF)2] upon oxidation with elemental sulfur; 11 has been characterized by 51V NMR spectroscopy.

  描述了均质三甲基硅烷醇络合物 V(OSiMe3)3 和 V(OSiMe3)4 的合成。硫钒(V)化合物VS(OSiPh3)3 (11)是由[V(OSiPh3)3-(THF)2]用元素硫氧化形成的；11 已通过 51V NMR 光谱表征。
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: V: MVol.B1, 74, page 202 - 205
  作者：

  DOI：——

  日期：——
• Vanadium(II) Salts in Pyridine and Acetonitrile Solvents
  作者：Phalguni Ghosh、Henry Taube、Tai Hasegawa、Reiko Kuroda

  DOI：10.1021/ic00127a013

  日期：1995.11

  Earlier work on the interaction of V(II ) salts with pyridine and acetonitrile as solvents has been extended. The structure of the compound VPy(4)(O3SCF3)(2), 1, an intermediate in many of the preparations, has been determined by X-ray diffraction. Analogous solids with I-, Br-, Cl-, SCN-, N-3(-), PhS(-), EtS(-), and BH4- as counterions have been prepared. Attempts to prepare solids with PhO(-), HO-, MeO(-), Ph(-), CN-, AlH4-, and H- failed, but the tetrapyridine complexes were prepared by titrating a solution of 1 in pyridine with the lithium salt of each anion (in the case of H-, the anion was Et(3)BH(-)) to an end point observed at the 1:2 ratio. Comparisons in a number of cases of the absorption spectra and of the cyclovoltammetric behavior of the tetrapyridine salts in pyridine and in CH2Cl2 show the species in the two solvents to be the same and to correspond to the composition of the solids. Intercomparisons of the absorption spectra in pyridine suggest that the complexes with the aforementioned anions all have similar structures: four pyridine molecules situated equatorially-on the basis of crystal structure determinations, in a propeller arrangement--and the anions occupying axial positions. The initial absorption spectrum of a solution of VPy(4)(PF6)(2) in pyridine changes to that shown by a solution of VPy(6)(PF6)(2) or of VPy(6)(BPh(4))(2), and we conclude that with these weakly nucleophilic anions VPy(6)(2+) is the dominant form of V(II) in pyridine solution. In every case, the prominent feature of the absorption spectrum is a band envelope consisting of a maximum that ranges from 586 to 400 nm accompanied by a shoulder which usually lies on ther low-energy side of the dominant peak and which in these cases we assign to nu(CT) and nu(1)'', respectively. The latter is the higher energy component of the two transitions nu(1)' and nu(1)'', which arise from nu(1) (octahedral) when the symmetry is reduced to axial. Energy correlations suggest that nu(CT) always lies at higher energy than nu(1)'', so that when the shoulder lies on the high-energy side of the dominant peak, epsilon(nu(1)'') exceeds epsilon(nu(CT)) In a number of cases nu(1)' is observed. It is of much lower intensity than nu(1)'', and the wavelengths of the transitions lie in the range of 600 nm and higher and vary with the nature of ligands as observed in other cases of axial symmetry. The absorption characteristics of Vqy(6)(2+) resemble those of the tetrapyridine complexes, suggesting that the propellerlike arrangement is retained in this species, two pyridines replacing the anions in the axial positions; i.e., the axial and equatorial pyridines are inequivalent.
• Funk, H.; Mohaupt, G.; Paul, A., Zeitschrift fur Anorganische und Allgemeine Chemie
  作者：Funk, H.、Mohaupt, G.、Paul, A.

  DOI：——

  日期：——