Two heterodinuclear NiFe-based sulfenate complexes mimicking an S-oxygenated intermediate of an O<sub>2</sub>-tolerant [NiFe]-H<sub>2</sub>ase: synthesis, structures, and reactivity
作者:Li-Cheng Song、Wei Chen、Li Feng
DOI:10.1039/d0nj02586k
日期:——
4-diazacycloheptanato]nickel(II) or (mmp-sulfino-dach)Ni (3). More interestingly, treatment of complex 2 with FeI2 afforded the unexpected dithiolate/diiodine complex [(bmmp-dach)Ni][2I2] (4), while complex 2 reacted with Fe2(CO)9 or CpFe(CO)2(BF4) to give dinuclear Ni(II)Fe(0) and Ni(II)Fe(II) complexes [(mmp-sulfeno-dach)Ni][Fe(CO)4] (5) and [(mmp-sulfeno-dach)Ni][Fe(CO)2Cp(BF4)] (6), respectively. Further
耐O 2的[NiFe] -H 2酶的S-加氧中间体的合成模型已证明具有很大的挑战性。用Ni(acac)2处理1,4-双(2-巯基-2-甲基丙基)-1,4-二氮杂环庚烷得到二硫醇盐配合物[1,4-双(2-巯基-2-甲基丙基)-1,4 -二氮杂环庚基镍(II)或(bmmp-dach)Ni(1)并用37%H 2 O 2水溶液进一步处理配合物1,得到亚磺酸盐配合物[1-(2-巯基-2-甲基丙基)-4-( (2-磺基-2-甲基丙基)-1,4-二氮杂环庚基]镍(II)或(mmp-磺基-dach)Ni(2)和亚磺酸盐络合物[1-(2-巯基-2-甲基丙基)-4-(2-磺基-2-甲基丙基)-1,4-二氮杂环庚七]镍(II)或(mmp-磺基-dach)Ni(3)。更有趣的是,用FeI 2处理配合物2产生了出乎意料的二硫醇盐/二碘配合物[(bmmp-dach)Ni] [2I 2 ](4),而配合物2与Fe 2(