splittings ΔEQ = 1.21 to 3.55 mm s−1 are obtained. The 5E ground state has been established for Fe(dmphen)2(NCS)2, all the remaining iron (II) complexes showing an orbital singlet ground state. With respect to the absence of 5T2⇌1A1 transitions in dmphen iron(II) complexes, it is concluded that a decrease of 10 Dq and/or geometrical factors originating in the bulky CH3 groups in 2- and 9-positions are
具有
配体2,9-二甲基-1,10-
菲咯啉(dmphen),1,10-
菲咯啉-2,9-二
羧酸(2,9-报告了phen(COO)2)和2,9-二甲乙氧基-1,10-
菲咯啉(2,9-phen-(COOC 2 H 5)2)。化合物Fe(dmphen)2 X 2,其中X = Br,I,
NCS本质上是非电解质,具有高自旋(5 T 2)基态,因此六坐标,而对于X = ClO 4,则表明完全解离dmphen
配体的四面体排列。Fe(2,9-phen-(COOC 2 H5)2)2(ClO 4)2,而X = Cl的单配位化合物Fe(2,9-phen(COOC 2 H 5)2)X 2,
NCS可能是五配位的非电解质。对于化合物Fe(2,9- phen- (COO)2).4.5H 2 O,建议采用六配位聚合物结构。磁化率遵循居里-魏斯定律在77和300 K之间,其值磁矩的μ EFF = 5.23至5.65 BM在298K和Θ=