Out-of-plane dimers of Mn(iii) quadridentate Schiff-base complexes with saltmen2– and naphtmen2– ligands: structure analysis and ferromagnetic exchange
作者:Hitoshi Miyasaka、Rodolphe Clérac、Tomohiko Ishii、Ho-Chol Chang、Susumu Kitagawa、Masahiro Yamashita
DOI:10.1039/b111094m
日期:2002.3.26
contrast with the above compounds, 5 is a discrete Mn(III) mononuclear complex with a square-pyramidal geometry. In the dimer series (compounds 1–4 and 6), the out-of-plane intermolecular distance varies dramatically according to equatorial ligands, saltmen2− or naphtmen2−, and axial ligands, H2O, NCS− and Cl−. The relation between substitution of the ligands and structural parameters of the dimeric molecules
六个Mn(III)四方体希夫碱用化合物Ñ,Ñ ' - (1,1,2,2-四甲基)双(水杨)二价阴离子(saltmen 2-)和Ñ,Ñ ' - (1,1,2,2-四甲基)双(naphthylideneiminato)二价阴离子制备了(萘酚2-)并对其结构进行了表征:[Mn(盐)(H 2 O)] ClO 4(1),[Mn(萘)(H 2 O)] ClO 4(2),[Mn(盐) )(NCS)](3),[Mn(naphtmen)(NCS)](4),[Mn(saltmen)(Cl)](5)和[Mn(naphtmen)(Cl)](6)。其中1和2种形式的酚盐桥接平面外二聚体,Mn-O酚盐 键距分别为2.434(2)和2.662(3)Å。X射线衍射分析表明,化合物3,4和6也可以在尽管长的Mn-O的视为外的平面二聚体苯酚相互作用距离(3.441(2)一种3,3.758(3)一种用于4和3.505(5) Å