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A Tri‐µ‐O‐S‐O Manganese Dimer: Synthesis, Structral and EPR Study
Author(s) -
Bi Yangang,
Chen Yuyou,
Lu Xiaoming
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201180353
Subject(s) - chemistry , manganese , electron paramagnetic resonance , acetonitrile , dimer , crystallography , crystal structure , phenanthroline , solvent , ion , paramagnetism , inorganic chemistry , nuclear magnetic resonance , organic chemistry , physics , quantum mechanics
A Tri‐µ‐O‐S‐O coordinative manganese dimer: [Mn 2 (SO 4 ) 2 (phen) 4 ]·CH 3 OH (phen1,10‐phenanthroline) ( 1 ) was yielded by the reaction of 1,10‐phenanthroline and MnSO 4 ·H 2 O in a mixed solvent of methanol and acetonitrile under room temperature and was structurally characterized. Single crystal analysis shows that complex 1 has polymeric structure based on binuclear Mn(II) units bridged by O‐S‐O groups of two SO 4 2− anion. The UV spectrum of the complex clarifies that each metal‐organic building unit parallels with each other through the Π‐Π interactions of face‐to‐face separations of two 1,10‐phen planes among the complex, forming a layered structure. And the electronic paramagnetic resonance (EPR) signal clearly indicates that those manganese atoms in complex 1 are in +2 oxidation states.