A nitrosyl hydride complex of a heme model [Ru(ttp)(HNO)(1-MeIm)] (ttp = tetratolylporphyrinato dianion)
A nitrosyl hydride complex of a heme model [Ru(ttp)(HNO)(1-MeIm)] (ttp = tetratolylporphyrinato dianion)
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DOI:
10.1016/j.jinorgbio.2004.04.005
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发表时间:
2004-07-01
影响因子:
3.9
通讯作者:
Richter-Addo, GB
中科院分区:
文献类型:
--
作者:
Lee, JY;Richter-Addo, GB
Hydride reduction of the bound nitrosyl ligand in [Ru(ttp)(NO)(1-MeIm)]BF4 (v(NO) 1862 cm(-1), ttp=tetratolylporphyrinato dianion) by sodium borohydride in anhydrous methanol leads to the generation of the first experimentally observable heme-model-HNO complex [Ru(ttp)(HNO)(1-Melm)] in 77% isolated yield. The H-1 NMR spectrum of the compound in CDCl3 shows a downfield resonance at 13.64 ppm assigned to the proton of the HNO ligand, and this peak splits into a doublet (J(NH) = 71.1 Hz) in the [Ru(ttp)((HNO)-N-15)(1-MeIm)] derivative. The IR spectrum of the solid as a KBr pellet reveals a strong band at 1380 cm(-1) assigned to v(NO); this band shifts to 1348 cm(-1) in the isotope-labeled [Ru(ttp)((HNO)-N-15)(1-MeIm)]. (C) 2004 Elsevier Inc. All rights reserved.