Tellurium-bridged manganese carbonyl clusters: Synthesis and structural transformations of [Te4Mn3(CO)10]-, [Te2Mn3(CO)9]2-, [Te2Mn3(CO)9]-, and [Te2Mn4(CO)12]2-

Minghuey Shieh; Horng Sun Chen; Huey Yea Yang; Shu Fen Lin; Chuen Her Ueng

doi:10.1002/1521-3765(20010716)7:14<3152::AID-CHEM3152>3.0.CO;2-B

Tellurium-bridged manganese carbonyl clusters: Synthesis and structural transformations of [Te₄Mn₃(CO)₁₀]^-, [Te₂Mn₃(CO)₉]^2-, [Te₂Mn₃(CO)₉]^-, and [Te₂Mn₄(CO)₁₂]^2-

Minghuey Shieh, Horng Sun Chen, Huey Yea Yang, Shu Fen Lin, Chuen Her Ueng

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The reactions of appropriate ratios of K₂TeO₃ and [Mn₂(CO)₁₀] in superheated methanol solutions lead to a series of novel cluster anions [Te₄Mn₃(CO)₁₀]^- (1), [Te₂Mn₃(CO)₉]^2- (2), [Te₂Mn₃(CO)₉]^- (3), and [Te₂Mn_4- (CO)₁₂]^2- (4). When cluster 1 is treated with [Mn₂(CO)₁₀]/KOH in methanol, paramagnetic cluster 2 is formed in moderate yield. Cluster 2 is oxidized by [Cu(MeCN)₄]BF₄ to give the closo-cluster [Te₂Mn₃(CO)₉]^- (3), while treatment of 2 with [Mn₂(CO)₁₀]/KOH affords the closo-cluster 4. IR spectroscopy showed that cluster 1 reacted with [Mn₂(CO)₁₀] to give cluster 4 via cluster 2. Clusters 1-4 were structurally characterized by spectroscopic methods or/and X-ray analyses. The core structure of 1 can be described as two [Mn(CO)₃] groups doubly bridged by two Te₂ fragments in a μ₂-η² fashion. Both [Mn(CO)₃] groups are further coordinated to one [Mn(CO)₄] moiety. Cluster 2 is a 49 e^- species with a square-pyramidal core geometry. While cluster 3 displays a trigonal-bipyramidal metal core, cluster 4 possesses an octahedral core geometry.

Original language	English
Pages (from-to)	3152-3158
Number of pages	7
Journal	Chemistry - A European Journal
Volume	7
Issue number	14
DOIs	https://doi.org/10.1002/1521-3765(20010716)7:14<3152::AID-CHEM3152>3.0.CO;2-B
Publication status	Published - 2001 Jul 16

Keywords

Bridging ligands
Carbonyl ligands
Cluster compounds
Manganese
Tellurium

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/1521-3765(20010716)7:14<3152::AID-CHEM3152>3.0.CO;2-B

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Tellurium-bridged manganese carbonyl clusters : Synthesis and structural transformations of [Te₄Mn₃(CO)₁₀]^-, [Te₂Mn₃(CO)₉]^2-, [Te₂Mn₃(CO)₉]^-, and [Te₂Mn₄(CO)₁₂]^2-. / Shieh, Minghuey; Chen, Horng Sun; Yang, Huey Yea; Lin, Shu Fen; Ueng, Chuen Her.

In: Chemistry - A European Journal, Vol. 7, No. 14, 16.07.2001, p. 3152-3158.

Research output: Contribution to journal › Article › peer-review

@article{53ca4a510d294b5e977157c14bf8ee22,

title = "Tellurium-bridged manganese carbonyl clusters: Synthesis and structural transformations of [Te4Mn3(CO)10]-, [Te2Mn3(CO)9]2-, [Te2Mn3(CO)9]-, and [Te2Mn4(CO)12]2-",

abstract = "The reactions of appropriate ratios of K2TeO3 and [Mn2(CO)10] in superheated methanol solutions lead to a series of novel cluster anions [Te4Mn3(CO)10]- (1), [Te2Mn3(CO)9]2- (2), [Te2Mn3(CO)9]- (3), and [Te2Mn4- (CO)12]2- (4). When cluster 1 is treated with [Mn2(CO)10]/KOH in methanol, paramagnetic cluster 2 is formed in moderate yield. Cluster 2 is oxidized by [Cu(MeCN)4]BF4 to give the closo-cluster [Te2Mn3(CO)9]- (3), while treatment of 2 with [Mn2(CO)10]/KOH affords the closo-cluster 4. IR spectroscopy showed that cluster 1 reacted with [Mn2(CO)10] to give cluster 4 via cluster 2. Clusters 1-4 were structurally characterized by spectroscopic methods or/and X-ray analyses. The core structure of 1 can be described as two [Mn(CO)3] groups doubly bridged by two Te2 fragments in a μ2-η2 fashion. Both [Mn(CO)3] groups are further coordinated to one [Mn(CO)4] moiety. Cluster 2 is a 49 e- species with a square-pyramidal core geometry. While cluster 3 displays a trigonal-bipyramidal metal core, cluster 4 possesses an octahedral core geometry.",

keywords = "Bridging ligands, Carbonyl ligands, Cluster compounds, Manganese, Tellurium",

author = "Minghuey Shieh and Chen, {Horng Sun} and Yang, {Huey Yea} and Lin, {Shu Fen} and Ueng, {Chuen Her}",

year = "2001",

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doi = "10.1002/1521-3765(20010716)7:14<3152::AID-CHEM3152>3.0.CO;2-B",

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T2 - Synthesis and structural transformations of [Te4Mn3(CO)10]-, [Te2Mn3(CO)9]2-, [Te2Mn3(CO)9]-, and [Te2Mn4(CO)12]2-

AU - Shieh, Minghuey

AU - Chen, Horng Sun

AU - Yang, Huey Yea

AU - Lin, Shu Fen

AU - Ueng, Chuen Her

PY - 2001/7/16

Y1 - 2001/7/16

N2 - The reactions of appropriate ratios of K2TeO3 and [Mn2(CO)10] in superheated methanol solutions lead to a series of novel cluster anions [Te4Mn3(CO)10]- (1), [Te2Mn3(CO)9]2- (2), [Te2Mn3(CO)9]- (3), and [Te2Mn4- (CO)12]2- (4). When cluster 1 is treated with [Mn2(CO)10]/KOH in methanol, paramagnetic cluster 2 is formed in moderate yield. Cluster 2 is oxidized by [Cu(MeCN)4]BF4 to give the closo-cluster [Te2Mn3(CO)9]- (3), while treatment of 2 with [Mn2(CO)10]/KOH affords the closo-cluster 4. IR spectroscopy showed that cluster 1 reacted with [Mn2(CO)10] to give cluster 4 via cluster 2. Clusters 1-4 were structurally characterized by spectroscopic methods or/and X-ray analyses. The core structure of 1 can be described as two [Mn(CO)3] groups doubly bridged by two Te2 fragments in a μ2-η2 fashion. Both [Mn(CO)3] groups are further coordinated to one [Mn(CO)4] moiety. Cluster 2 is a 49 e- species with a square-pyramidal core geometry. While cluster 3 displays a trigonal-bipyramidal metal core, cluster 4 possesses an octahedral core geometry.

AB - The reactions of appropriate ratios of K2TeO3 and [Mn2(CO)10] in superheated methanol solutions lead to a series of novel cluster anions [Te4Mn3(CO)10]- (1), [Te2Mn3(CO)9]2- (2), [Te2Mn3(CO)9]- (3), and [Te2Mn4- (CO)12]2- (4). When cluster 1 is treated with [Mn2(CO)10]/KOH in methanol, paramagnetic cluster 2 is formed in moderate yield. Cluster 2 is oxidized by [Cu(MeCN)4]BF4 to give the closo-cluster [Te2Mn3(CO)9]- (3), while treatment of 2 with [Mn2(CO)10]/KOH affords the closo-cluster 4. IR spectroscopy showed that cluster 1 reacted with [Mn2(CO)10] to give cluster 4 via cluster 2. Clusters 1-4 were structurally characterized by spectroscopic methods or/and X-ray analyses. The core structure of 1 can be described as two [Mn(CO)3] groups doubly bridged by two Te2 fragments in a μ2-η2 fashion. Both [Mn(CO)3] groups are further coordinated to one [Mn(CO)4] moiety. Cluster 2 is a 49 e- species with a square-pyramidal core geometry. While cluster 3 displays a trigonal-bipyramidal metal core, cluster 4 possesses an octahedral core geometry.

KW - Bridging ligands

KW - Carbonyl ligands

KW - Cluster compounds

KW - Manganese

KW - Tellurium

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