Iron(III) complexes with a 3N/3S chromophore reproduce a
mixed N/S heterocyclic ligand environment, metal–ligand bond
lengths, and low-spin state (S = 1/2) characteristic of the
hydrolytic metalloenzyme nitrile hydratase;
Fe
III
N
2
S
2
Cl species possesses a quantum
mechanically admixed S = 3/2, 5/2 state and able to form low-spin
solvent adducts, possible analogues of the substrate-bound form of the
enzyme.
具有 3N/3S 发色团的
铁(III)络合物再现了具有
水解
金属酶腈
水解酶特征的混合 N/S 杂环
配体环境、
金属
配体键长度和低自旋状态(S = 1/2);Fe III N 2 S 2 Cl 物种具有量子力学混合的 S = 3/2、5/2 状态,能够形成低自旋溶剂加合物,这可能是该酶底物结合形式的类似物。