Molybdenum doubly bridged and chelate nitrosyl complexes incorporating saturated n-alkanediolate ligands

被引：5

作者：

Wlodarczyk, Andrzej J. ^{[1
]}

Romanczyk, Piotr P. ^{[1
]}

机构：

[1] Krakow Tech Univ, Fac Chem Engn & Technol, PL-31155 Krakow, Poland

来源：

INORGANICA CHIMICA ACTA | 2009年 / 362卷 / 12期

关键词：

Molybdenum nitrosyl complexes; Doubly bridged bimetallic complexes; Chelate complexes; Tris(pyrazolyl)borato complexes; Electronic interactions; Electrocatalysis; Reductive dehalogenation; ELECTROCHEMICAL INTERACTIONS; BIMETALLIC COMPLEXES; BINUCLEAR MOLYBDENUM; CRYSTAL-STRUCTURES; ELECTRON-TRANSFER; MOLECULAR WIRES; REDOX-ACTIVITY;

D O I：

10.1016/j.ica.2009.03.032

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The redox-active doubly bridged species [{Mo(NO)(Tp(Me2))Q}(2)] [Tp(Me2) = tris(3,5-dimethylpyrazol-1-yl) hydroborate, Q = O(CH2)(n)O, n = 3, 5, or OCH2(CF2)(n) 2CH2O, n = 5, 6], and a chelate complex [Mo(NO)-(Tp(Me2))O(CH2)(5)O] were prepared and characterised by elemental and mass analyses, H-1 NMR and IR spectroscopy. The bimetallic species with C-3, C-5, and C-5(F) bridges exhibit two well-resolved reduction processes in their cyclic voltammograms (Delta E-1/2 values of 290, 170, and 170 mV, respectively). These results indicate that the presence of the second bridge increases the extent of electrochemical interactions (by ca. 90-130 mV) in comparison with their singly bridged analogues. All non-fluorinated and the chelate species were catalytically active in cathodic reduction of chloroform. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：4635 / 4638

页数：4

共 17 条

[1] Insights from protein film voltammetry into mechanisms of complex biological electron-transfer reactions
Armstrong, FA
[J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2002, (05): : 661 - 671
[2] Long-range electron transfer
Gray, HB
Winkler, JR
[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (10) : 3534 - 3539
[3] Electronics using hybrid-molecular and mono-molecular devices
Joachim, C
Gimzewski, JK
Aviram, A
[J]. NATURE, 2000, 408 (6812) : 541 - 548
[4] Metal complexes in molecular electronics: progress and possibilities
Low, PJ
[J]. DALTON TRANSACTIONS, 2005, (17) : 2821 - 2824
[5] Redox-activity in complexes with Mo(NO) and Mo(O) cores: Facts and consequences
McCleverty, JA
Ward, MD
Jones, CJ
[J]. COMMENTS ON INORGANIC CHEMISTRY, 2001, 22 (05) : 293 - 326
[6] Stereoselectivity in the formation of metallomacrocycles from [Mo(NO){HB(3,5-Me2C3HN2)3}I2] and ditopic proligands:: The x-ray crystal structures of anti-[Mo(NO){HB(3,5-Me2C3HN2)3}{1,4-(OCH2)2C6H4}]2.4CHCl3, syn-[Mo(NO){HB(3,5-Me2C3HN2)3}{1,4-(OCH2)2C6H4}]2.2CH2Cl2, and anti-[Mo(NO){HB(3,5-Me2C3HN2)3}{(4-OC6H4)2CH2}]2.2CHCl3.CH2Cl2
McQuillan, FS
Chen, HL
Hamor, TA
Jones, CJ
Jones, HA
Sidebotham, RP
[J]. INORGANIC CHEMISTRY, 1999, 38 (07) : 1555 - 1562
[7] Syntheses and electrochemistry of bimetallic complexes containing cyclohexanediolate or cyclopentanediolate bridges
McWhinnie, SLW
Jones, CJ
McCleverty, JA
Yellowlees, LJ
[J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1996, (23): : 4401 - 4408
[8] Theoretical modeling of electrochemical interactions in bimetallic molybdenum nitrosyl complexes incorporating saturated bridges
Noga, Klemens
Romanczyk, Piotr P.
Wlodarczyk, Andrzej J.
Broclawik, Ewa
[J]. POLYHEDRON, 2008, 27 (13) : 2819 - 2824
[9] Reynolds S.J., 2007, Inorganic Syntheses, P4, DOI [10.1002/9780470132548.ch2, DOI 10.1002/9780470132548.CH2]
[10] Redox activity of bimetallic complexes based on tris(3,5-dimethylpyrazolyl)borato molybdenum(II) and tungsten(II) nitrosyls.: Complexes derived from ethane-1,2-diol and the crystal structure of anti-[Mo(NO){HB(3,5-Me2C3HN2)3}-(OCH2CH2O)]2•4CHCl3
Romanczyk, Piotr P.
Guzik, Matylda N.
Wlodarczyk, Andrzej J.
[J]. POLYHEDRON, 2007, 26 (06) : 1182 - 1190

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