Selenium-capped trimolybdenum and tritungsten carbonyl clusters [Se 2M3(CO)10]2- (M = Mo, W)

Miao Hsing Hsu; Chia Yeh Miu; Yi Chun Lin; Minghuey Shieh

doi:10.1016/j.jorganchem.2005.10.039

Selenium-capped trimolybdenum and tritungsten carbonyl clusters [Se ₂M₃(CO)₁₀]^2- (M = Mo, W)

Miao Hsing Hsu, Chia Yeh Miu, Yi Chun Lin, Minghuey Shieh

Department of Chemistry

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

A facile synthesis of the novel selenium-capped trimolybdenum and tritungsten ring carbonyl clusters [Se₂M₃(CO) ₁₀]^2- (M = Mo, 1; W, 4) have been achieved. The selenium-capped trimolybdenum cluster compound [Et₄N] ₂[Se₂Mo₃(CO)₁₀] ([Et ₄N]₂[1]) can be obtained from the reaction of the trichromium cluster compound [Et₄N]₂[Se₂Cr ₃(CO)₁₀] with 4 equiv. of Mo(CO)₆ in refluxing acetone. On the other hand, when [Et₄N]₂[Se ₂Cr₃(CO)₁₀] reacted with 4 equiv. of W(CO) ₆ in refluxing acetone, the planar cluster compound [Et ₄N]₂[Se₂W₄(CO)₁₈] ([Et₄N]₂[3]) was isolated, which could further transform to the tritungsten cluster compound [Et₄N]₂[Se ₂W₃(CO)₁₀] ([Et₄N]₂[4]) in good yield. Alternatively, clusters 1 and 4 could be formed from the reactions of the monosubstituted products [Et₄N]₂[Se ₂Cr₂M(CO)₁₀] (M = Mo; W, [Et₄N] ₂[2]) with 3 equiv. of M(CO)₆ in acetone, respectively. Complexes 1-4 are fully characterized by IR, ⁷⁷Se NMR spectroscopy, and single-crystal X-ray analysis. Clusters 1, 2, and 4 are isostructural and each display a trigonal bipyramidal structure with a homometallic M₃ ring (M = Mo, 1; W, 4) or a heterometallic Cr₂W ring that is further capped above and below by μ₃-Se atoms. Further, the intermediate planar complex 3 exhibits a Se₂W₂ square with each Se atom externally coordinated to one W(CO)₅ group. This paper describes a systematic route to a series of selenium-capped trimetallic carbonyl clusters and the formation and the structural features of the resultant clusters are discussed.

Original language	English
Pages (from-to)	966-974
Number of pages	9
Journal	Journal of Organometallic Chemistry
Volume	691
Issue number	5
DOIs	https://doi.org/10.1016/j.jorganchem.2005.10.039
Publication status	Published - 2006 Feb 15

Keywords

Carbonyl
Cluster
Molybdenum
Selenium
Tungsten

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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Hsu, M. H., Miu, C. Y., Lin, Y. C., & Shieh, M. (2006). Selenium-capped trimolybdenum and tritungsten carbonyl clusters [Se ₂M₃(CO)₁₀]^2- (M = Mo, W). Journal of Organometallic Chemistry, 691(5), 966-974. https://doi.org/10.1016/j.jorganchem.2005.10.039

@article{1e3009fb0f5a483683ae084e7a1c7228,

title = "Selenium-capped trimolybdenum and tritungsten carbonyl clusters [Se 2M3(CO)10]2- (M = Mo, W)",

abstract = "A facile synthesis of the novel selenium-capped trimolybdenum and tritungsten ring carbonyl clusters [Se2M3(CO) 10]2- (M = Mo, 1; W, 4) have been achieved. The selenium-capped trimolybdenum cluster compound [Et4N] 2[Se2Mo3(CO)10] ([Et 4N]2[1]) can be obtained from the reaction of the trichromium cluster compound [Et4N]2[Se2Cr 3(CO)10] with 4 equiv. of Mo(CO)6 in refluxing acetone. On the other hand, when [Et4N]2[Se 2Cr3(CO)10] reacted with 4 equiv. of W(CO) 6 in refluxing acetone, the planar cluster compound [Et 4N]2[Se2W4(CO)18] ([Et4N]2[3]) was isolated, which could further transform to the tritungsten cluster compound [Et4N]2[Se 2W3(CO)10] ([Et4N]2[4]) in good yield. Alternatively, clusters 1 and 4 could be formed from the reactions of the monosubstituted products [Et4N]2[Se 2Cr2M(CO)10] (M = Mo; W, [Et4N] 2[2]) with 3 equiv. of M(CO)6 in acetone, respectively. Complexes 1-4 are fully characterized by IR, 77Se NMR spectroscopy, and single-crystal X-ray analysis. Clusters 1, 2, and 4 are isostructural and each display a trigonal bipyramidal structure with a homometallic M3 ring (M = Mo, 1; W, 4) or a heterometallic Cr2W ring that is further capped above and below by μ3-Se atoms. Further, the intermediate planar complex 3 exhibits a Se2W2 square with each Se atom externally coordinated to one W(CO)5 group. This paper describes a systematic route to a series of selenium-capped trimetallic carbonyl clusters and the formation and the structural features of the resultant clusters are discussed.",

keywords = "Carbonyl, Cluster, Molybdenum, Selenium, Tungsten",

author = "Hsu, {Miao Hsing} and Miu, {Chia Yeh} and Lin, {Yi Chun} and Minghuey Shieh",

year = "2006",

month = feb,

day = "15",

doi = "10.1016/j.jorganchem.2005.10.039",

language = "English",

volume = "691",

pages = "966--974",

journal = "Journal of Organometallic Chemistry",

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number = "5",

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TY - JOUR

T1 - Selenium-capped trimolybdenum and tritungsten carbonyl clusters [Se 2M3(CO)10]2- (M = Mo, W)

AU - Hsu, Miao Hsing

AU - Miu, Chia Yeh

AU - Lin, Yi Chun

AU - Shieh, Minghuey

PY - 2006/2/15

Y1 - 2006/2/15

N2 - A facile synthesis of the novel selenium-capped trimolybdenum and tritungsten ring carbonyl clusters [Se2M3(CO) 10]2- (M = Mo, 1; W, 4) have been achieved. The selenium-capped trimolybdenum cluster compound [Et4N] 2[Se2Mo3(CO)10] ([Et 4N]2[1]) can be obtained from the reaction of the trichromium cluster compound [Et4N]2[Se2Cr 3(CO)10] with 4 equiv. of Mo(CO)6 in refluxing acetone. On the other hand, when [Et4N]2[Se 2Cr3(CO)10] reacted with 4 equiv. of W(CO) 6 in refluxing acetone, the planar cluster compound [Et 4N]2[Se2W4(CO)18] ([Et4N]2[3]) was isolated, which could further transform to the tritungsten cluster compound [Et4N]2[Se 2W3(CO)10] ([Et4N]2[4]) in good yield. Alternatively, clusters 1 and 4 could be formed from the reactions of the monosubstituted products [Et4N]2[Se 2Cr2M(CO)10] (M = Mo; W, [Et4N] 2[2]) with 3 equiv. of M(CO)6 in acetone, respectively. Complexes 1-4 are fully characterized by IR, 77Se NMR spectroscopy, and single-crystal X-ray analysis. Clusters 1, 2, and 4 are isostructural and each display a trigonal bipyramidal structure with a homometallic M3 ring (M = Mo, 1; W, 4) or a heterometallic Cr2W ring that is further capped above and below by μ3-Se atoms. Further, the intermediate planar complex 3 exhibits a Se2W2 square with each Se atom externally coordinated to one W(CO)5 group. This paper describes a systematic route to a series of selenium-capped trimetallic carbonyl clusters and the formation and the structural features of the resultant clusters are discussed.

AB - A facile synthesis of the novel selenium-capped trimolybdenum and tritungsten ring carbonyl clusters [Se2M3(CO) 10]2- (M = Mo, 1; W, 4) have been achieved. The selenium-capped trimolybdenum cluster compound [Et4N] 2[Se2Mo3(CO)10] ([Et 4N]2[1]) can be obtained from the reaction of the trichromium cluster compound [Et4N]2[Se2Cr 3(CO)10] with 4 equiv. of Mo(CO)6 in refluxing acetone. On the other hand, when [Et4N]2[Se 2Cr3(CO)10] reacted with 4 equiv. of W(CO) 6 in refluxing acetone, the planar cluster compound [Et 4N]2[Se2W4(CO)18] ([Et4N]2[3]) was isolated, which could further transform to the tritungsten cluster compound [Et4N]2[Se 2W3(CO)10] ([Et4N]2[4]) in good yield. Alternatively, clusters 1 and 4 could be formed from the reactions of the monosubstituted products [Et4N]2[Se 2Cr2M(CO)10] (M = Mo; W, [Et4N] 2[2]) with 3 equiv. of M(CO)6 in acetone, respectively. Complexes 1-4 are fully characterized by IR, 77Se NMR spectroscopy, and single-crystal X-ray analysis. Clusters 1, 2, and 4 are isostructural and each display a trigonal bipyramidal structure with a homometallic M3 ring (M = Mo, 1; W, 4) or a heterometallic Cr2W ring that is further capped above and below by μ3-Se atoms. Further, the intermediate planar complex 3 exhibits a Se2W2 square with each Se atom externally coordinated to one W(CO)5 group. This paper describes a systematic route to a series of selenium-capped trimetallic carbonyl clusters and the formation and the structural features of the resultant clusters are discussed.

KW - Carbonyl

KW - Cluster

KW - Molybdenum

KW - Selenium

KW - Tungsten

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