Copper coordinated ligand thioether-S and NO<sub>2</sub><sup>−</sup> oxidation: relevance to the Cu<sub>M</sub> site of hydroxylases
作者:Ram Chandra Maji、Anirban Bhandari、Ravindra Singh、Suprakash Roy、Sudip K. Chatterjee、Faye L. Bowles、Kamran B. Ghiassi、Milan Maji、Marilyn M. Olmstead、Apurba K. Patra
DOI:10.1039/c5dt02184g
日期:——
[(L1SO)CuII(CH3CN)](ClO4)}n (2), [(L1)CuII(ONO)] (3), [(L1SO)CuII(ONO)]n (4), [(L1)CuII(NO3)]n (5), [(L1SO)CuII(NO3)]n (6) and [(L1SO2)CuII(NO3)] (7). Complexes 1 and 3 were described in a previous publication (Inorg. Chem., 2013, 52, 11084). The X-ray crystal structures revealed either distorted octahedral (in 2, 4–6) or square-pyramidal (in 1, 3) coordination geometry around CuII ions of the complexes
为了深入了解羟化酶(如肽基甘氨酸α-羟化单加氧酶(PHM),多巴胺β-单加氧酶(DβM)和酪胺β-单加氧酶(TβM))的Cu M位点的配位点和氧化活性,我们合成了,表征并研究了三齿N 2 S硫醚,N 2 O亚砜或N 2 O砜供体对螯合的铜配合物的氧化化学。配体是N -2-甲基硫代苯基-2'-吡啶甲酰胺(HL1)的配体,以及氧化的变体N -2-甲基磺酰基苯基-2'-吡啶甲酰胺(HL1 SO的配体))和N -2-甲基磺酰氨基苯基-2'-吡啶甲酰胺(HL1 SO2)。我们的研究提供了[[(L1)Cu II(H 2 O)](ClO 4)·H 2 O(1 ·H 2 O),[(L1 SO)Cu II(CH 3 CN)](ClO 4)} n(2),[(L1)Cu II(ONO)](3),[(L1 SO)Cu II(ONO)] n(4),[(L1)Cu II(NO 3)] n(5),[(L 1 SO)Cu