%0 Generic
%A Zhang, Daopeng
%A Si, Weijiang
%A Wang, Ping
%A Chen, Xia
%A Jiang, Jianzhuang
%D 2014
%T 1D to 3D Heterobimetallic Complexes Tuned by Cyanide
Precursors: Synthesis, Crystal Structures, and Magnetic Properties
%U https://acs.figshare.com/articles/dataset/1D_to_3D_Heterobimetallic_Complexes_Tuned_by_Cyanide_Precursors_Synthesis_Crystal_Structures_and_Magnetic_Properties/2308354
%R 10.1021/ic4029386.s004
%2 https://acs.figshare.com/ndownloader/files/3945982
%K Seiden model
%K 6.0 K
%K TN
%K 3 D Heterobimetallic Complexes Tuned
%K cyanide group
%K Ni
%K Magnetic PropertiesFive
%K Hamiltonian H
%K complexes exhibit
%K cyanide groups
%K Crystal Structures
%K Fe
%K 4.0 K
%K cyanidometalate precursors
%K 1 D
%K heterobimetallic complexes
%K TC
%K Cyanide Precursors
%K phase transition temperature
%X Five
new heterobimetallic complexes, namely, {[Ni(L)][Fe(bpb)(CN)2]}ClO4 (L = 2,12-dimethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17),13,15-triene,
bpb2– = 1,2-bis(pyridine-2-carboxamido)benzenate)
(1), {[Ni(L)]3[M(CN)6]2}·7H2O (M = Fe (2), Cr (3)), {[Ni(L)]2[Mo(CN)8]}·CH3CN·13H2O (4), and {[Ni(L)]2[W(CN)8]}·16H2O (5), were
assembled from the polyaza macrocycle nickel(II) compound and five
cyanidometalate precursors containing different numbers of cyanide
groups. Single-crystal X-ray diffraction analysis reveals their different
structure ranging from a cyanide-bridged cationic polymeric single
chain for 1, a two-dimensional network for 2 and 3, and a three-dimensional network for 4 and 5. In addition, a systematic investigation over
the magnetic properties of 1–3 indicates
the ferromagnetic magnetic coupling between neighboring Fe(III)/Cr(III)
and Ni(II) ions through the bridging cyanide group. For complex 1, the magnetic susceptibility has been simulated by the Seiden
model using the Hamiltonian H = –J∑i=0NSiSi+1, leading to the magnetic coupling
constant of J = 3.67 cm–1. The
two-dimensional magnetic complexes exhibit three-dimensional magnetic
ordering behavior with a magnetic phase transition temperature of TC = 4.0 K for 2 and TN = 6.0 K for 3, respectively.
%I ACS Publications