The organozinc rich compounds [Cp*M(ZnR)5] (M = Fe, Ru; R = Cp*, Me, Cl, Br)

Mariusz Molon; Christian Gemel; Rüdiger W. Seidel; Paul Jerabek; Gernot Frenking; Roland A. Fischer

doi:10.1021/ic400741b

The organozinc rich compounds [CpM(ZnR)₅] (M = Fe, Ru; R = Cp, Me, Cl, Br)

Mariusz Molon, Christian Gemel, Rüdiger W. Seidel, Paul Jerabek, Gernot Frenking, Roland A. Fischer

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

14 Scopus citations

Abstract

Organozinc (ZnR with R = Cp*, Me, Cl, Br) ligated transition metal (M) half-sandwich compounds of general formula [Cp*M(ZnR)₅] (M = Fe, Ru) are presented in this work. The new compounds were obtained by treatment of various GaCp* ligated precursors with suitable amounts of ZnMe₂ to exchange Ga against Zn. This exchange follows a strict Ga:Zn ratio of 1:2. Accordingly, a Ga/Zn mixed compound [{Cp*Ru(GaCp*) (ZnCp*)(ZnCl)₂}₂] can be obtained if the amount of ZnMe₂ is reduced so that one GaCp* remains coordinated to the transition metal. All new compounds were characterized by elemental analysis, ¹H and ¹³C NMR spectroscopy as well as by single crystal X-ray diffraction techniques, if applicable. The coordination polyhedra of [Cp*M(ZnR)₅] can be derived from the pseudo homoleptic parent compound [Ru(ZnCp*)₄(ZnMe)₆], as emphasized by continuous shape measures analysis (CShM). Computational investigations at the density functional theory (DFT) level of theory were performed, revealing no significant attractive interaction of the zinc atoms and therefore these compounds are best described as classical complexes, rather than cluster compounds. The Ru-L bond strength follow the order Cp* > ZnCl > ZnMe > ZnCp*.

Original language	English
Pages (from-to)	7152-7160
Number of pages	9
Journal	Inorganic Chemistry
Volume	52
Issue number	12
DOIs	https://doi.org/10.1021/ic400741b
State	Published - 17 Jun 2013
Externally published	Yes

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title = "The organozinc rich compounds [Cp*M(ZnR)5] (M = Fe, Ru; R = Cp*, Me, Cl, Br)",

abstract = "Organozinc (ZnR with R = Cp*, Me, Cl, Br) ligated transition metal (M) half-sandwich compounds of general formula [Cp*M(ZnR)5] (M = Fe, Ru) are presented in this work. The new compounds were obtained by treatment of various GaCp* ligated precursors with suitable amounts of ZnMe2 to exchange Ga against Zn. This exchange follows a strict Ga:Zn ratio of 1:2. Accordingly, a Ga/Zn mixed compound [{Cp*Ru(GaCp*) (ZnCp*)(ZnCl)2}2] can be obtained if the amount of ZnMe2 is reduced so that one GaCp* remains coordinated to the transition metal. All new compounds were characterized by elemental analysis, 1H and 13C NMR spectroscopy as well as by single crystal X-ray diffraction techniques, if applicable. The coordination polyhedra of [Cp*M(ZnR)5] can be derived from the pseudo homoleptic parent compound [Ru(ZnCp*)4(ZnMe)6], as emphasized by continuous shape measures analysis (CShM). Computational investigations at the density functional theory (DFT) level of theory were performed, revealing no significant attractive interaction of the zinc atoms and therefore these compounds are best described as classical complexes, rather than cluster compounds. The Ru-L bond strength follow the order Cp* > ZnCl > ZnMe > ZnCp*.",

author = "Mariusz Molon and Christian Gemel and Seidel, {R{\"u}diger W.} and Paul Jerabek and Gernot Frenking and Fischer, {Roland A.}",

year = "2013",

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T1 - The organozinc rich compounds [Cp*M(ZnR)5] (M = Fe, Ru; R = Cp*, Me, Cl, Br)

AU - Molon, Mariusz

AU - Gemel, Christian

AU - Seidel, Rüdiger W.

AU - Jerabek, Paul

AU - Frenking, Gernot

AU - Fischer, Roland A.

PY - 2013/6/17

Y1 - 2013/6/17

N2 - Organozinc (ZnR with R = Cp*, Me, Cl, Br) ligated transition metal (M) half-sandwich compounds of general formula [Cp*M(ZnR)5] (M = Fe, Ru) are presented in this work. The new compounds were obtained by treatment of various GaCp* ligated precursors with suitable amounts of ZnMe2 to exchange Ga against Zn. This exchange follows a strict Ga:Zn ratio of 1:2. Accordingly, a Ga/Zn mixed compound [{Cp*Ru(GaCp*) (ZnCp*)(ZnCl)2}2] can be obtained if the amount of ZnMe2 is reduced so that one GaCp* remains coordinated to the transition metal. All new compounds were characterized by elemental analysis, 1H and 13C NMR spectroscopy as well as by single crystal X-ray diffraction techniques, if applicable. The coordination polyhedra of [Cp*M(ZnR)5] can be derived from the pseudo homoleptic parent compound [Ru(ZnCp*)4(ZnMe)6], as emphasized by continuous shape measures analysis (CShM). Computational investigations at the density functional theory (DFT) level of theory were performed, revealing no significant attractive interaction of the zinc atoms and therefore these compounds are best described as classical complexes, rather than cluster compounds. The Ru-L bond strength follow the order Cp* > ZnCl > ZnMe > ZnCp*.

AB - Organozinc (ZnR with R = Cp*, Me, Cl, Br) ligated transition metal (M) half-sandwich compounds of general formula [Cp*M(ZnR)5] (M = Fe, Ru) are presented in this work. The new compounds were obtained by treatment of various GaCp* ligated precursors with suitable amounts of ZnMe2 to exchange Ga against Zn. This exchange follows a strict Ga:Zn ratio of 1:2. Accordingly, a Ga/Zn mixed compound [{Cp*Ru(GaCp*) (ZnCp*)(ZnCl)2}2] can be obtained if the amount of ZnMe2 is reduced so that one GaCp* remains coordinated to the transition metal. All new compounds were characterized by elemental analysis, 1H and 13C NMR spectroscopy as well as by single crystal X-ray diffraction techniques, if applicable. The coordination polyhedra of [Cp*M(ZnR)5] can be derived from the pseudo homoleptic parent compound [Ru(ZnCp*)4(ZnMe)6], as emphasized by continuous shape measures analysis (CShM). Computational investigations at the density functional theory (DFT) level of theory were performed, revealing no significant attractive interaction of the zinc atoms and therefore these compounds are best described as classical complexes, rather than cluster compounds. The Ru-L bond strength follow the order Cp* > ZnCl > ZnMe > ZnCp*.

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The organozinc rich compounds [CpM(ZnR)₅] (M = Fe, Ru; R = Cp, Me, Cl, Br)

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