Published September 2007 | Version v1
Journal article Metadata-only

Synthesis, molecular structure and properties of cobalt heterometallic tetramethylcyclobutadiene complexes (C4Me4)Co(CO)2TePh, (C4Me4)Co(CO)2TePh[W(CO)5] and Me4C4Co(μ3-S)2Cr2Cp2(μ-SC4H9)

Creators

  • 1. Inst. Obshchej i Neorganicheskoj Khimii im. N.S. Kurnakova Rossijskoj Akademii Nauk, Moscow (Russian Federation)
  • 2. Inst. Fizicheskoj Khimii i Ehlektrokhimii im. A.N. Frumkina Rossijskoj Akademii Nauk, Moscow (Russian Federation)
  • 3. Inst. Ehlementoorganicheskikh Soedinenij im. A.N. Nesmeyanova Rossijskoj Akademii Nauk, Moscow (Russian Federation)

Description

Cb*Co(CO)2TePh (2) mononuclear complex the reaction of which with W(CO)5(THF) produced Cb*Co(CO)2TePh[W(CO)5] (4) compound was obtained in the course of Cb*Co(CO)2I (1) (Cb* - tetramethylcyclobutadiene) reaction with sodium phenyl telluride. Reaction 1 with Cp2Cr2(SCMe3)2S complex produces Cb*Co(μ3-S)2Cr2Cp2 (μ-SCMe3) (5) heterometallic cluster. 2, 4 and 5 complexes are diamagnetic ones, their structure is determined by means of the X-ray structure analysis. Complex 2 contains Co-Te (2.585(1) A) bond, complex 4 - Co-Te (2.558(8) A) and W-Te (2.8467(6) A) bonds, while complex 5 is characterized by Cr2Co stable triangular skeleton (lengths of Cr- Cr and Cr-Co bonds are equal to 2.626(2) and 2.673(2) A) with sulfide and ternary-butyl mercaptide bridges, as well as, with Cp-ligands at chromium atom, and with Cb*-ligand at cobalt atom. One presents the cyclic voltammetry data for complex 5 and studies complex 4 thermal decomposition

Abstract (Russian)

Реакцией Cb*Co(CO)2I (1) (Cb* - тетраметлциклобутадиен) с фенилтеллуридом натрия получен моноядерный комплекс Cb*Co(CO)2TePh (2), взаимодействие которого с W(CO)5(THF) приводит к образованию соединения Cb*Co(CO)2TePh[W(CO)5] (4). Реакция 1 с комплексом Cp2Cr2(SCMe3)2S дает гетерометаллический кластер Cb*Co(μ3-S)2Cr2Cp2 (μ-SCMe3) (5). Комплексы 2, 4 и 5 диамагнитны, их структура охарактеризована методом РСА. Комплекс 2 содержит связь Со-Те (2.585(1) А), комплекс 4 - связи Со-Те (2.558(8) А) и W-Те (2.8467(6) А), а в комплексе 5 имеется прочный треугольный остов Сг2Со (длины связей Сг- Сг и Сг-Со равны 2.626(2) и 2.673(2) А соответственно) с сульфидными и трет-бутилмеркаптидным мостиками, а также Ср-лигандами при атомах хрома и СЬ*-лигандом у атома кобальта. Приведены данные циклической вольтамперометрии для комплекса 5 и изучен термораспад комплекса 4

Additional details

Additional titles

Original title (Russian)
Синтез, молекулярная структура и свойства гетерометаллических тетраметилциклобутадиеновых комплексов кобальта (C

Publishing Information

Journal Title
Izvestiya Akademii Nauk. Rossijskaya Akademiya Nauk. Seriya Khimicheskaya
Journal Issue
no.9
Journal Page Range
p. 1669-1673
ISSN
1026-3500
CODEN
IASKEA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
39064456
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
BOND LENGTHS; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; COBALT COMPLEXES; IODINE COMPOUNDS; MOLECULAR STRUCTURE; PYROLYSIS; TELLURIDES; TUNGSTEN COMPOUNDS; VOLTAMETRY; X-RAY DIFFRACTION
Descriptors DEC
CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; COMPLEXES; DECOMPOSITION; DIFFRACTION; DIMENSIONS; HALOGEN COMPOUNDS; LENGTH; REFRACTORY METAL COMPOUNDS; SCATTERING; SYNTHESIS; TELLURIUM COMPOUNDS; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
13 refs., 3 figs., 3 tabs.