HYPERFINE COUPLING OF O-17 TO MO(V) IN THE RAPID EPR SIGNAL OF XANTHINE-OXIDASE - EVIDENCE FOR AN OXYGEN LIGAND OF THE METAL
HYPERFINE COUPLING OF O-17 TO MO(V) IN THE RAPID EPR SIGNAL OF XANTHINE-OXIDASE - EVIDENCE FOR AN OXYGEN LIGAND OF THE METAL
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DOI：
10.1016/s0162-0134(00)80190-7
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发表时间：
1979-01-01
影响因子：
3.9
通讯作者：
BRAY, RC
中科院分区：
文献类型：
--
作者：
GUTTERIDGE, S;MALTHOUSE, JPG;BRAY, RC
本文给出了黄嘌呤氧化物溶于17O富集水的快速Mo(V)EPR信号的光谱。用差分技术消除了16O的贡献。光谱中明显观察到的结构归因于1个氧原子与Mo的中等强度的超精细耦合。虽然还没有尝试对光谱进行完整的解释，但A(17O)的1个成分约为1.6mT。讨论了氧存在于Mo-OH基团中的可能性，该基团的质子是快速信号的强耦合质子。
The spectrum of the rapid Mo(V) EPR signal from xanthine oxidase dissolved in 17O-enriched water is presented. Difference techniques were used to eliminate the 16O contribution. Clearly observed structure in the spectrum is attributed to moderately strong hyperfine coupling of 1 oxygen atom to Mo. Though complete interpretation of the spectrum has not been attempted, 1 component of A(17O) is about 1.6 mT. The possibility that the oxygen is present in a Mo-OH group, whose proton is the strongly-coupled proton of the rapid signal, is discussed.