Diphenylditellurium as a Ligand for Mononuclear Chromium and Tungsten Pentacarbonyl Complexes: Synthesis, Molecular Structures, and 125Te NMR Spectra

A. A. Pasynskii; Yu V. Torubaev; A. V. Drukovskii; I. L. Eremenko; D. Vegini; E. V. Krasil'nikova; V. I. Privalov; A. I. Yanovskii; Yu T. Struchkov

Diphenylditellurium as a Ligand for Mononuclear Chromium and Tungsten Pentacarbonyl Complexes: Synthesis, Molecular Structures, and ¹²⁵Te NMR Spectra

A. A. Pasynskii, Yu V. Torubaev, A. V. Drukovskii, I. L. Eremenko, D. Vegini, E. V. Krasil'nikova, V. I. Privalov, A. I. Yanovskii, Yu T. Struchkov

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4 Scopus citations

Abstract

The photochemical reactions of equimolar amounts of M(CO)₆ (M = W, Cr) and Ph₂Te₂ in THF at room temperature or the reaction of (CO)₅M(THF) with Ph₂Te₂ yield the mononuclear orange complexes (CO)₅M(Te₂Ph₂), where M = W (1) or Cr (2), characterized by X-ray diffraction data. The W and Cr atoms coordinate one Te atom (W-Te, 2.810(I)Å; Cr-Te, 2,679(3) Å), which causes a slight lengthening of the Te-Te bonds from 2.712 Å in the free Te₂Ph₂, to 2.714(1) and 2,737(2) Å in 1 and 2, respectively. In complex 2, the coordination of one Cr(CO)₅ group to tellurium leads to a strong downfield shift of the ¹²⁵NMR singlets of both Te nuclei with respect to the signal of free Te₂Ph₂. By contrast, in complex 1, only the ¹²⁵Te NMR signal of the coordinated Te atom experiences a strong downfield shift.

Original language	English
Pages (from-to)	36-41
Number of pages	6
Journal	Russian Journal of Inorganic Chemistry
Volume	42
Issue number	1
State	Published - 1 Jan 1997
Externally published	Yes

ASJC Scopus subject areas

Materials Science (miscellaneous)
Physical and Theoretical Chemistry
Inorganic Chemistry

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Pasynskii, A. A., Torubaev, Y. V., Drukovskii, A. V., Eremenko, I. L., Vegini, D., Krasil'nikova, E. V., Privalov, V. I., Yanovskii, A. I., & Struchkov, Y. T. (1997). Diphenylditellurium as a Ligand for Mononuclear Chromium and Tungsten Pentacarbonyl Complexes: Synthesis, Molecular Structures, and ¹²⁵Te NMR Spectra. Russian Journal of Inorganic Chemistry, 42(1), 36-41.

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title = "Diphenylditellurium as a Ligand for Mononuclear Chromium and Tungsten Pentacarbonyl Complexes: Synthesis, Molecular Structures, and 125Te NMR Spectra",

abstract = "The photochemical reactions of equimolar amounts of M(CO)6 (M = W, Cr) and Ph2Te2 in THF at room temperature or the reaction of (CO)5M(THF) with Ph2Te2 yield the mononuclear orange complexes (CO)5M(Te2Ph2), where M = W (1) or Cr (2), characterized by X-ray diffraction data. The W and Cr atoms coordinate one Te atom (W-Te, 2.810(I){\AA}; Cr-Te, 2,679(3) {\AA}), which causes a slight lengthening of the Te-Te bonds from 2.712 {\AA} in the free Te2Ph2, to 2.714(1) and 2,737(2) {\AA} in 1 and 2, respectively. In complex 2, the coordination of one Cr(CO)5 group to tellurium leads to a strong downfield shift of the 125NMR singlets of both Te nuclei with respect to the signal of free Te2Ph2. By contrast, in complex 1, only the 125Te NMR signal of the coordinated Te atom experiences a strong downfield shift.",

author = "Pasynskii, {A. A.} and Torubaev, {Yu V.} and Drukovskii, {A. V.} and Eremenko, {I. L.} and D. Vegini and Krasil'nikova, {E. V.} and Privalov, {V. I.} and Yanovskii, {A. I.} and Struchkov, {Yu T.}",

year = "1997",

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language = "English",

volume = "42",

pages = "36--41",

journal = "Russian Journal of Inorganic Chemistry",

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T1 - Diphenylditellurium as a Ligand for Mononuclear Chromium and Tungsten Pentacarbonyl Complexes

T2 - Synthesis, Molecular Structures, and 125Te NMR Spectra

AU - Pasynskii, A. A.

AU - Torubaev, Yu V.

AU - Drukovskii, A. V.

AU - Eremenko, I. L.

AU - Vegini, D.

AU - Krasil'nikova, E. V.

AU - Privalov, V. I.

AU - Yanovskii, A. I.

AU - Struchkov, Yu T.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The photochemical reactions of equimolar amounts of M(CO)6 (M = W, Cr) and Ph2Te2 in THF at room temperature or the reaction of (CO)5M(THF) with Ph2Te2 yield the mononuclear orange complexes (CO)5M(Te2Ph2), where M = W (1) or Cr (2), characterized by X-ray diffraction data. The W and Cr atoms coordinate one Te atom (W-Te, 2.810(I)Å; Cr-Te, 2,679(3) Å), which causes a slight lengthening of the Te-Te bonds from 2.712 Å in the free Te2Ph2, to 2.714(1) and 2,737(2) Å in 1 and 2, respectively. In complex 2, the coordination of one Cr(CO)5 group to tellurium leads to a strong downfield shift of the 125NMR singlets of both Te nuclei with respect to the signal of free Te2Ph2. By contrast, in complex 1, only the 125Te NMR signal of the coordinated Te atom experiences a strong downfield shift.

AB - The photochemical reactions of equimolar amounts of M(CO)6 (M = W, Cr) and Ph2Te2 in THF at room temperature or the reaction of (CO)5M(THF) with Ph2Te2 yield the mononuclear orange complexes (CO)5M(Te2Ph2), where M = W (1) or Cr (2), characterized by X-ray diffraction data. The W and Cr atoms coordinate one Te atom (W-Te, 2.810(I)Å; Cr-Te, 2,679(3) Å), which causes a slight lengthening of the Te-Te bonds from 2.712 Å in the free Te2Ph2, to 2.714(1) and 2,737(2) Å in 1 and 2, respectively. In complex 2, the coordination of one Cr(CO)5 group to tellurium leads to a strong downfield shift of the 125NMR singlets of both Te nuclei with respect to the signal of free Te2Ph2. By contrast, in complex 1, only the 125Te NMR signal of the coordinated Te atom experiences a strong downfield shift.

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AN - SCOPUS:2542539955

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Diphenylditellurium as a Ligand for Mononuclear Chromium and Tungsten Pentacarbonyl Complexes: Synthesis, Molecular Structures, and ¹²⁵Te NMR Spectra

Abstract

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