Li Ming, Neal Teresa J, Ehlinger Noelle, Schulz Charles E, Scheidt W Robert
The Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556.
J Porphyr Phthalocyanines. 2010 Jan 1;14(1):115-122. doi: 10.1142/S1088424610001714.
Syntheses, molecular structures and magnetic susceptibilities of three meso-substituted high-spin iron(III) porphyrinate complexes ([Fe(TEtP)(Cl)], [Fe(TPrP)(Cl)], and [Fe(THexP)(Cl)]) are described. It was determined that the inter-ring interactions within each dimeric unit change upon alteration of the alkyl groups at the meso-positions. Magnetic exchange couplings between iron centers of the dimers are in accord with the trends in structural inter-ring geometries. Crystal data for [Fe(TEtP)(Cl)]: a = 10.1710(5) Å, b = 11.309(3) Å, c = 12.170(3) Å, α = 91.774(9) °, β = 113.170(14) °, γ = 112.149(9) °, V = 1165.2(4) Å(3), triclinic, P1̄, Z = 2, R(1) = 0.0844 and ωR(2) = 0.2073 for observed data. Crystal data for [Fe([Fe(TPrP)(Cl)])(Cl)]: a = 13.040(2) Å, b = 15.221(2) Å, c = 14.6681(9) Å, β = 109.997(11) °, V = 2735.9(7) Å(3), monoclinic, P2(1)/n, Z = 4, R(1) = 0.0477 and ωR(2) = 0.1176 for observed data. Crystal data for [Fe(THexP)(Cl)]: a = 10.246(7) Å, b = 12.834(4) Å, c = 17.420(15) Å, α = 69.74(3) °, β = 87.52(4) °, γ, = 84.89(3) °, V = 2140(2) Å(3), triclinic, P1̄, Z = 2, R(1) = 0.1024 and ωR(2) = 0.2659 for observed data.
描述了三种中位取代的高自旋铁(III)卟啉配合物([Fe(TEtP)(Cl)]、[Fe(TPrP)(Cl)]和[Fe(THexP)(Cl)])的合成、分子结构和磁化率。已确定,随着中位烷基的改变,每个二聚体单元内的环间相互作用会发生变化。二聚体中铁中心之间的磁交换耦合与结构环间几何形状的趋势一致。[Fe(TEtP)(Cl)]的晶体数据:a = 10.1710(5) Å,b = 11.309(3) Å,c = 12.170(3) Å,α = 91.774(9) °,β = 113.170(14) °,γ = 112.149(9) °,V = 1165.2(4) Å(3),三斜晶系,P1̄,Z = 2,对于观测数据,R(1) = 0.0844,ωR(2) = 0.2073。[Fe([Fe(TPrP)(Cl)])(Cl)]的晶体数据:a = 13.040(2) Å,b = 15.221(2) Å,c = 14.6681(9) Å,β = 109.997(11) °,V = 2735.9(7) Å(3),单斜晶系,P2(1)/n,Z = 4,对于观测数据,R(1) = 0.0477,ωR(2) = 0.1176。[Fe(THexP)(Cl)]的晶体数据:a = 10.246(7) Å,b = 12.834(4) Å,c = 17.420(15) Å,α = 69.74(3) °,β = 87.52(4) °,γ = 84.89(3) °,V = 2140(2) Å(3),三斜晶系,P1̄,Z = 2,对于观测数据,R(1) = 0.1024,ωR(2) = 0.2659。