Carbonylchromium Monotelluride Complexes [Et4N] 2[Te{Cr(CO)5}n (n = 2, 3): Two Important Intermediates

Minghuey Shieh; Li Fang Ho; Yu Wen Guo; Shu Fen Lin; Yi Chun Lin; Shie Ming Peng; Yi Hung Liu

doi:10.1021/om034033+

Carbonylchromium Monotelluride Complexes [Et₄N] ₂[Te{Cr(CO)₅}_n (n = 2, 3): Two Important Intermediates

Minghuey Shieh^*, Li Fang Ho, Yu Wen Guo, Shu Fen Lin, Yi Chun Lin, Shie Ming Peng, Yi Hung Liu

^*此作品的通信作者

化學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

16 引文斯高帕斯（Scopus）

摘要

The first isolation of the monotelluride-bridged chromium carbonyl complexes [Et₄N]₂[Te-{Cr(CO)₅}_n] (n = 3, [Et₄N]₂[1]; n = 2, [Et₄N]₂[2]) has been achieved from the reaction of Te powder with 3 equiv of Cr(CO) ₆ in the presence of [Et₄N]Br in concentrated KOH/EtOH solution. According to X-ray analysis, anion 1 displays a pyramidal geometry with the Te atom bonded to three Cr(CO)₃ fragments and anion 2 exhibits a nonlinear structure with the Te atom coordinated with two Cr(CO) ₅ moieties. Complex 1 can transform to 2 in the presence of Cr(CO)₆/KOH/EtOH solution. Conversely, 2 can convert back to 1 upon the reaction with Cr(CO)₆ in MeCN. Interestingly, the novel C-O activation of MeOH is observed when 1 was treated with NaOH/MeOH solution at 70 °C, giving the Te-methylated product [Et₄N] [MeTe{Cr(CO) ₅}₂] ([Et₄N][3]). Complex 2 is reactive toward some organic solvents. It can react with CH₂Cl₂ to form the CH₂-bridged tetrachromium complex [Et₄N] ₂[CH₂{TeCr₂-(CO)₁₀}₂] ([Et₄N]₂[4]) and can transform to the known tetrachromium tritelluride complex [Et₄N]₂[Te₃{Cr(CO) ₅}₄], in MeOH solution. Besides, we also found that 2 can undergo oxidative coupling with [Cu(MeCN)₄]BF₄ in MeOH to form the dimeric open cluster [Te₂{Cr(CO)₅} ₄]^2- and can react with NaOH in MeOH to give the dimeric ring complex [Te₂Cr₄(CO)₁₈]^2-. Complexes 1-4 are fully characterized by spectroscopic methods and single-crystal X-ray analysis. This paper describes that complexes 1 and 2 are important intermediates for a series of tellurium-containing polychromium complexes, and the interesting structural features of the resultant new polychromium carbonyl complexes are compared as well.

原文	英語
頁（從 - 到）	5020-5026
頁數	7
期刊	Organometallics
卷	22
發行號	24
DOIs	https://doi.org/10.1021/om034033+
出版狀態	已發佈 - 2003 11月 24

ASJC Scopus subject areas

物理與理論化學
有機化學
無機化學

存取文件

10.1021/om034033+

其它文件與鏈接

CCDC 226613: Experimental Crystal Structure Determination
Shieh, M. (Creator), Ho, L. (Creator), Guo, Y. (Creator), Lin, S. (Creator), Lin, Y. (Creator), Peng, S. (Creator) & Liu, Y. (Creator), Unknown Publisher, 2004
DOI: 10.5517/cc7lt3q, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc7lt3q&sid=DataCite
資料集: Dataset
CCDC 226610: Experimental Crystal Structure Determination
Shieh, M. (Creator), Ho, L. (Creator), Guo, Y. (Creator), Lin, S. (Creator), Lin, Y. (Creator), Peng, S. (Creator) & Liu, Y. (Creator), Unknown Publisher, 2004
DOI: 10.5517/cc7lt0m, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc7lt0m&sid=DataCite
資料集: Dataset
CCDC 226612: Experimental Crystal Structure Determination
Shieh, M. (Creator), Ho, L. (Creator), Guo, Y. (Creator), Lin, S. (Creator), Lin, Y. (Creator), Peng, S. (Creator) & Liu, Y. (Creator), Unknown Publisher, 2004
DOI: 10.5517/cc7lt2p, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc7lt2p&sid=DataCite
資料集: Dataset

引用此

@article{1637a6b6910c4269b1a138a87783a47c,

title = "Carbonylchromium Monotelluride Complexes [Et4N] 2[Te{Cr(CO)5}n (n = 2, 3): Two Important Intermediates",

abstract = "The first isolation of the monotelluride-bridged chromium carbonyl complexes [Et4N]2[Te-{Cr(CO)5}n] (n = 3, [Et4N]2[1]; n = 2, [Et4N]2[2]) has been achieved from the reaction of Te powder with 3 equiv of Cr(CO) 6 in the presence of [Et4N]Br in concentrated KOH/EtOH solution. According to X-ray analysis, anion 1 displays a pyramidal geometry with the Te atom bonded to three Cr(CO)3 fragments and anion 2 exhibits a nonlinear structure with the Te atom coordinated with two Cr(CO) 5 moieties. Complex 1 can transform to 2 in the presence of Cr(CO)6/KOH/EtOH solution. Conversely, 2 can convert back to 1 upon the reaction with Cr(CO)6 in MeCN. Interestingly, the novel C-O activation of MeOH is observed when 1 was treated with NaOH/MeOH solution at 70 °C, giving the Te-methylated product [Et4N] [MeTe{Cr(CO) 5}2] ([Et4N][3]). Complex 2 is reactive toward some organic solvents. It can react with CH2Cl2 to form the CH2-bridged tetrachromium complex [Et4N] 2[CH2{TeCr2-(CO)10}2] ([Et4N]2[4]) and can transform to the known tetrachromium tritelluride complex [Et4N]2[Te3{Cr(CO) 5}4], in MeOH solution. Besides, we also found that 2 can undergo oxidative coupling with [Cu(MeCN)4]BF4 in MeOH to form the dimeric open cluster [Te2{Cr(CO)5} 4]2- and can react with NaOH in MeOH to give the dimeric ring complex [Te2Cr4(CO)18]2-. Complexes 1-4 are fully characterized by spectroscopic methods and single-crystal X-ray analysis. This paper describes that complexes 1 and 2 are important intermediates for a series of tellurium-containing polychromium complexes, and the interesting structural features of the resultant new polychromium carbonyl complexes are compared as well.",

author = "Minghuey Shieh and Ho, {Li Fang} and Guo, {Yu Wen} and Lin, {Shu Fen} and Lin, {Yi Chun} and Peng, {Shie Ming} and Liu, {Yi Hung}",

year = "2003",

month = nov,

day = "24",

doi = "10.1021/om034033+",

language = "English",

volume = "22",

pages = "5020--5026",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "24",

}

TY - JOUR

T1 - Carbonylchromium Monotelluride Complexes [Et4N] 2[Te{Cr(CO)5}n (n = 2, 3)

T2 - Two Important Intermediates

AU - Shieh, Minghuey

AU - Ho, Li Fang

AU - Guo, Yu Wen

AU - Lin, Shu Fen

AU - Lin, Yi Chun

AU - Peng, Shie Ming

AU - Liu, Yi Hung

PY - 2003/11/24

Y1 - 2003/11/24

N2 - The first isolation of the monotelluride-bridged chromium carbonyl complexes [Et4N]2[Te-{Cr(CO)5}n] (n = 3, [Et4N]2[1]; n = 2, [Et4N]2[2]) has been achieved from the reaction of Te powder with 3 equiv of Cr(CO) 6 in the presence of [Et4N]Br in concentrated KOH/EtOH solution. According to X-ray analysis, anion 1 displays a pyramidal geometry with the Te atom bonded to three Cr(CO)3 fragments and anion 2 exhibits a nonlinear structure with the Te atom coordinated with two Cr(CO) 5 moieties. Complex 1 can transform to 2 in the presence of Cr(CO)6/KOH/EtOH solution. Conversely, 2 can convert back to 1 upon the reaction with Cr(CO)6 in MeCN. Interestingly, the novel C-O activation of MeOH is observed when 1 was treated with NaOH/MeOH solution at 70 °C, giving the Te-methylated product [Et4N] [MeTe{Cr(CO) 5}2] ([Et4N][3]). Complex 2 is reactive toward some organic solvents. It can react with CH2Cl2 to form the CH2-bridged tetrachromium complex [Et4N] 2[CH2{TeCr2-(CO)10}2] ([Et4N]2[4]) and can transform to the known tetrachromium tritelluride complex [Et4N]2[Te3{Cr(CO) 5}4], in MeOH solution. Besides, we also found that 2 can undergo oxidative coupling with [Cu(MeCN)4]BF4 in MeOH to form the dimeric open cluster [Te2{Cr(CO)5} 4]2- and can react with NaOH in MeOH to give the dimeric ring complex [Te2Cr4(CO)18]2-. Complexes 1-4 are fully characterized by spectroscopic methods and single-crystal X-ray analysis. This paper describes that complexes 1 and 2 are important intermediates for a series of tellurium-containing polychromium complexes, and the interesting structural features of the resultant new polychromium carbonyl complexes are compared as well.

AB - The first isolation of the monotelluride-bridged chromium carbonyl complexes [Et4N]2[Te-{Cr(CO)5}n] (n = 3, [Et4N]2[1]; n = 2, [Et4N]2[2]) has been achieved from the reaction of Te powder with 3 equiv of Cr(CO) 6 in the presence of [Et4N]Br in concentrated KOH/EtOH solution. According to X-ray analysis, anion 1 displays a pyramidal geometry with the Te atom bonded to three Cr(CO)3 fragments and anion 2 exhibits a nonlinear structure with the Te atom coordinated with two Cr(CO) 5 moieties. Complex 1 can transform to 2 in the presence of Cr(CO)6/KOH/EtOH solution. Conversely, 2 can convert back to 1 upon the reaction with Cr(CO)6 in MeCN. Interestingly, the novel C-O activation of MeOH is observed when 1 was treated with NaOH/MeOH solution at 70 °C, giving the Te-methylated product [Et4N] [MeTe{Cr(CO) 5}2] ([Et4N][3]). Complex 2 is reactive toward some organic solvents. It can react with CH2Cl2 to form the CH2-bridged tetrachromium complex [Et4N] 2[CH2{TeCr2-(CO)10}2] ([Et4N]2[4]) and can transform to the known tetrachromium tritelluride complex [Et4N]2[Te3{Cr(CO) 5}4], in MeOH solution. Besides, we also found that 2 can undergo oxidative coupling with [Cu(MeCN)4]BF4 in MeOH to form the dimeric open cluster [Te2{Cr(CO)5} 4]2- and can react with NaOH in MeOH to give the dimeric ring complex [Te2Cr4(CO)18]2-. Complexes 1-4 are fully characterized by spectroscopic methods and single-crystal X-ray analysis. This paper describes that complexes 1 and 2 are important intermediates for a series of tellurium-containing polychromium complexes, and the interesting structural features of the resultant new polychromium carbonyl complexes are compared as well.

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Carbonylchromium Monotelluride Complexes [Et4N] 2[Te{Cr(CO)5}n (n = 2, 3): Two Important Intermediates

摘要

ASJC Scopus subject areas

存取文件

其它文件與鏈接

指紋

資料集

CCDC 226613: Experimental Crystal Structure Determination

CCDC 226610: Experimental Crystal Structure Determination

CCDC 226612: Experimental Crystal Structure Determination

引用此

Carbonylchromium Monotelluride Complexes [Et₄N] ₂[Te{Cr(CO)₅}_n (n = 2, 3): Two Important Intermediates