TY - JOUR
T1 - A novel coordination polymer based on Co(II) hexanuclear clusters with azide and carboxylate bridges
T2 - Structure, magnetism and its application as a Li-ion battery anode
AU - Gong, Teng
AU - Lou, Xiaobing
AU - Fang, Jia Jia
AU - Gao, En Qing
AU - Hu, Bingwen
N1 - Publisher Copyright:
This journal is © The Royal Society of Chemistry 2016.
PY - 2016
Y1 - 2016
N2 - A novel Co(ii) coordination polymer, [Co(H2O)6][Co6(bpybdc)2(N3)10(H2O)4]·8H2O (bpybdc2- = 1,1′-bis(3,5-dicarboxylatophenyl)-4,4′-bipyridinium), has been synthesized from a rigid zwitterionic tetracarboxylate ligand and azide. In this compound, hexacobalt clusters with mixed μ-1,1-azide, μ3-1,1,1-azide and μ-1,3-carboxylate bridges are linked into chains by μ-1,3-azide bridges, and the chains are interlinked into 2-fold interpenetrated three-dimensional frameworks through the organic ligand and hydrogen bonds mediated by hexaaquacobalt(ii) complex ions. Magnetic analysis suggested that intracluster ferromagnetic and intercluster antiferromagnetic interactions work together to give overall antiferromagnetic ground states for the azide and carboxylate bridged chain. When applied as an anode for lithium-ion batteries, the coordination polymer changes into an amorphous phase and exhibits a relatively high reversible capacity of 510 mA h g-1 with stable cycling behavior and rate performance.
AB - A novel Co(ii) coordination polymer, [Co(H2O)6][Co6(bpybdc)2(N3)10(H2O)4]·8H2O (bpybdc2- = 1,1′-bis(3,5-dicarboxylatophenyl)-4,4′-bipyridinium), has been synthesized from a rigid zwitterionic tetracarboxylate ligand and azide. In this compound, hexacobalt clusters with mixed μ-1,1-azide, μ3-1,1,1-azide and μ-1,3-carboxylate bridges are linked into chains by μ-1,3-azide bridges, and the chains are interlinked into 2-fold interpenetrated three-dimensional frameworks through the organic ligand and hydrogen bonds mediated by hexaaquacobalt(ii) complex ions. Magnetic analysis suggested that intracluster ferromagnetic and intercluster antiferromagnetic interactions work together to give overall antiferromagnetic ground states for the azide and carboxylate bridged chain. When applied as an anode for lithium-ion batteries, the coordination polymer changes into an amorphous phase and exhibits a relatively high reversible capacity of 510 mA h g-1 with stable cycling behavior and rate performance.
UR - https://www.scopus.com/pages/publications/85000624388
U2 - 10.1039/c6dt03637f
DO - 10.1039/c6dt03637f
M3 - 文章
AN - SCOPUS:85000624388
SN - 1477-9226
VL - 45
SP - 19109
EP - 19116
JO - Dalton Transactions
JF - Dalton Transactions
IS - 47
ER -
