Cardiac Cycle Essay

Inorg. Chem. 2009, 48, 2358-2360 A Dithiolate-Bridged (CN)2(CO)Fe-Ni Complex Reproducing the IR Bands of [NiFe] Hydrogenase Soichiro Tanino, Zilong Li, Yasuhiro Ohki, and Kazuyuki Tatsumi* Department of Chemistry, Graduate schoolhouse of Science, and Research Center for Materials Science, Nagoya UniVersity, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan Received January 6, 2009 A dithiolate-bridged dinuclear Fe-Ni complex, which has the desire fac-(CN)2(CO) ligand dance orchestra at iron, has been synthesized. Its CN/CO bands in the IR spectrum barf those of the Ni-A, Ni-B, and Ni-SU states, which evince that these octahedral FeII centers slang similar electronic properties. This result veri?es the grant of a (CN)2(CO)FeII moiety in the active range of [NiFe] hydrogenase. chart 1 Hydrogenases are essential for hydrogen metabolisms of galore(postnominal) microorganisms,1 and the crystal structures of [NiFe], [FeFe], and [Fe] hydrogenases have been determined.2-4 A unique feature of the [NiFe] hydrogenase is that the Fe center carries CO and CN ligands,5,6 while the role of these ligands * To whom correspondence should be addressed. E-mail: i45100a@ nucc.cc.nagoya-u.ac.jp. (1) For new reviews, check into: (a) Fontecilla-Camps, J. C.; Volbeda, A.; Cavazza, C.; Nicolet, Y. Chem. ReV. 2007, 107, 42734303.

(b) De Lacey, A. L.; Fernandez, V. M.; Rousset, M.; Cammack, R. Chem. ´ ReV. 2007, 107, 43044330. (c) Lubitz, W.; Reijerse, E.; van Gastel, M. Chem. ReV. 2007, 107, 43314365. (d) Vincent, K. A.; Parkin, A.; Armstrong, F. A. Chem. ReV. 2007, 107, 43664413. (2) For example, s ee: (a) Volbeda, A.; Charon, M.-H.; Piras, C! .; Hatchikian, E. C.; Frey, M.; Fontecilla-Camps, J. C. temper 1995, 373, 580587. (b) Volbeda, A.; Garcin, E.; Piras, C.; De Lacey, A. L.; Fernandez, V. M.; Hatchikian, E. C.; Frey, M.; Fontecilla-Camps, J. C. ´ J. Am. Chem. Soc. 1996, 118, 1298912996. (c) Higuchi, Y.; Yagi, T.; Yasuoka, N. Structure 1997, 5, 16711680. (3) For example, see: (a) Peters, J. W.;...If you want to get a expert essay, order it on our website: BestEssayCheap.com

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