4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes

Fritz E. Kühn; Jing Lin Zuo; Fabrizia Fabrizi De Biani; Ana M. Santos; Yanmei Zhang; Jin Zhao; Angela Sandulache; Eberhardt Herdtweck

doi:10.1039/b307919h

4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes

Fritz E. Kühn
, Jing Lin Zuo
, Fabrizia Fabrizi De Biani
, Ana M. Santos
, Yanmei Zhang
, Jin Zhao
, Angela Sandulache
, Eberhardt Herdtweck

Associate Professorship of Molecular Catalysis

Technical University of Munich
University of Siena
Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa

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

31 Scopus citations

Abstract

Two ruthenium(II) 4-ethynylpyridine-hydride complexes bearing one Lewis-basic nitrogen atom as coordination site, namely trans-Ru(dppe) ₂H(C≡Cpy-4) (1) and trans-Ru(dppm)₂H(C≡Cpy-4) (2) (dppe = 1,2-bis(diphenylphosphino) ethane, dppm = 1,2-bis(diphenylphosphino) methane) and Ru(dmpe)₂(C≡Cpy-4)₂ (3) (dmpe = 1,2-bis(dimethylphosphino) ethane) with two nitrogen donor atoms were applied to synthesize the heterobimetallic mixed Ru/Re complexes 4-7. The X-ray crystal structure of the binuclear complex [Re(CO)₃-(t-bu₂bipy) Ru(dppe)₂(C≡Cpy-4)H] [OS(=O)₂CF₃] (t-bu₂bipy = 4, 4′-di (t-butyl)-2,2′-bipyridine, (7)) has been determined. Besides the usual characterization (IR, NMR, UV/Vis, EA) of the compounds 1-7, thermogravimmetry (TG) and cyclovoltammetry (CV) of selected complexes were measured in order to study the interaction between the organometallic building blocks. The existence of long-range Ru⋯Re interactions has been observed.

Original language	English
Pages (from-to)	43-51
Number of pages	9
Journal	New Journal of Chemistry
Volume	28
Issue number	1
DOIs	https://doi.org/10.1039/b307919h
State	Published - Jan 2004

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@article{b907dd22e15a42e0829ca895c17aa44f,

title = "4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes",

abstract = "Two ruthenium(II) 4-ethynylpyridine-hydride complexes bearing one Lewis-basic nitrogen atom as coordination site, namely trans-Ru(dppe) 2H(C≡Cpy-4) (1) and trans-Ru(dppm)2H(C≡Cpy-4) (2) (dppe = 1,2-bis(diphenylphosphino) ethane, dppm = 1,2-bis(diphenylphosphino) methane) and Ru(dmpe)2(C≡Cpy-4)2 (3) (dmpe = 1,2-bis(dimethylphosphino) ethane) with two nitrogen donor atoms were applied to synthesize the heterobimetallic mixed Ru/Re complexes 4-7. The X-ray crystal structure of the binuclear complex [Re(CO)3-(t-bu2bipy) Ru(dppe)2(C≡Cpy-4)H] [OS(=O)2CF3] (t-bu2bipy = 4, 4′-di (t-butyl)-2,2′-bipyridine, (7)) has been determined. Besides the usual characterization (IR, NMR, UV/Vis, EA) of the compounds 1-7, thermogravimmetry (TG) and cyclovoltammetry (CV) of selected complexes were measured in order to study the interaction between the organometallic building blocks. The existence of long-range Ru⋯Re interactions has been observed.",

author = "K{\"u}hn, \{Fritz E.\} and Zuo, \{Jing Lin\} and \{Fabrizi De Biani\}, Fabrizia and Santos, \{Ana M.\} and Yanmei Zhang and Jin Zhao and Angela Sandulache and Eberhardt Herdtweck",

year = "2004",

month = jan,

doi = "10.1039/b307919h",

language = "English",

volume = "28",

pages = "43--51",

journal = "New Journal of Chemistry",

issn = "1144-0546",

publisher = "Royal Society of Chemistry",

number = "1",

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T1 - 4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes

AU - Kühn, Fritz E.

AU - Zuo, Jing Lin

AU - Fabrizi De Biani, Fabrizia

AU - Santos, Ana M.

AU - Zhang, Yanmei

AU - Zhao, Jin

AU - Sandulache, Angela

AU - Herdtweck, Eberhardt

PY - 2004/1

Y1 - 2004/1

N2 - Two ruthenium(II) 4-ethynylpyridine-hydride complexes bearing one Lewis-basic nitrogen atom as coordination site, namely trans-Ru(dppe) 2H(C≡Cpy-4) (1) and trans-Ru(dppm)2H(C≡Cpy-4) (2) (dppe = 1,2-bis(diphenylphosphino) ethane, dppm = 1,2-bis(diphenylphosphino) methane) and Ru(dmpe)2(C≡Cpy-4)2 (3) (dmpe = 1,2-bis(dimethylphosphino) ethane) with two nitrogen donor atoms were applied to synthesize the heterobimetallic mixed Ru/Re complexes 4-7. The X-ray crystal structure of the binuclear complex [Re(CO)3-(t-bu2bipy) Ru(dppe)2(C≡Cpy-4)H] [OS(=O)2CF3] (t-bu2bipy = 4, 4′-di (t-butyl)-2,2′-bipyridine, (7)) has been determined. Besides the usual characterization (IR, NMR, UV/Vis, EA) of the compounds 1-7, thermogravimmetry (TG) and cyclovoltammetry (CV) of selected complexes were measured in order to study the interaction between the organometallic building blocks. The existence of long-range Ru⋯Re interactions has been observed.

AB - Two ruthenium(II) 4-ethynylpyridine-hydride complexes bearing one Lewis-basic nitrogen atom as coordination site, namely trans-Ru(dppe) 2H(C≡Cpy-4) (1) and trans-Ru(dppm)2H(C≡Cpy-4) (2) (dppe = 1,2-bis(diphenylphosphino) ethane, dppm = 1,2-bis(diphenylphosphino) methane) and Ru(dmpe)2(C≡Cpy-4)2 (3) (dmpe = 1,2-bis(dimethylphosphino) ethane) with two nitrogen donor atoms were applied to synthesize the heterobimetallic mixed Ru/Re complexes 4-7. The X-ray crystal structure of the binuclear complex [Re(CO)3-(t-bu2bipy) Ru(dppe)2(C≡Cpy-4)H] [OS(=O)2CF3] (t-bu2bipy = 4, 4′-di (t-butyl)-2,2′-bipyridine, (7)) has been determined. Besides the usual characterization (IR, NMR, UV/Vis, EA) of the compounds 1-7, thermogravimmetry (TG) and cyclovoltammetry (CV) of selected complexes were measured in order to study the interaction between the organometallic building blocks. The existence of long-range Ru⋯Re interactions has been observed.

UR - https://www.scopus.com/pages/publications/1242329157

U2 - 10.1039/b307919h

DO - 10.1039/b307919h

M3 - Article

AN - SCOPUS:1242329157

SN - 1144-0546

VL - 28

SP - 43

EP - 51

JO - New Journal of Chemistry

JF - New Journal of Chemistry

IS - 1

ER -

4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes

Abstract

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