Auxiliary dipyridylamide ligand control of dimensionality in copper 5-sulfoisophthalate coordination polymers

被引:4
作者
Meyers, Abigail E.
LaDuca, Robert L. [1 ]
机构
[1] Michigan State Univ, Lyman Briggs Coll, E Lansing, MI 48825 USA
关键词
Crystal structure; Coordination polymer; Copper; Antiferromagnetism; CRYSTAL-STRUCTURES; HYDROGEN STORAGE; COMPLEXES; NETWORK;
D O I
10.1016/j.ica.2017.11.062
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Hydrothermal reaction of copper nitrate, sodium 5-sulfoisophthalate (sip), and a long-spanning hydrogen- bonding capable dipyridylamide ligand afforded four coordination polymers whose dimensionality depends critically on the dipyridylamide tether length. The four new phases were structurally characterized via single-crystal X-ray diffraction. {[Cu-8(sip)(4)(pbn)(3)(nic)(mu(3)-OH)(2)(mu(2)-OH)(mu(2)-H2O)(H2O)(4)]center dot 5H(2)O}(n) (1, pbn = 1,3-propanediaminebis(nicotinamide), nic = nicotinate) manifests an intriguing 2D slab structure featuring trimeric copper clusters containing bridging hydroxide ions and water molecules along with substantial crystallographic disorder. {[Cu-3(sip)(2)(pbin)(4)(H2O)(4)]center dot 14H(2)O}(n) (2, pbin = 1,3-propanediaminebis( isonicotinamide)) shows 1D chain motifs with curled conformation dipyridylamide ligands. {[Cu-4(mu(2)-OH)(2)(sip)(2)(hbin)]center dot 2H(2)O}(n) (3, hbin = 1,6-hexanediaminebis(isonicotinamide)) features [Cu-4(mu-OH)(2) (sip)(2)] butterfly clusters connected into a 3D 3,8-connected network with (4.6(2))(2)(4(2)6(18)7(4)8(4)) topology. {[Cu(Hsip)(hbn)(H2O)]center dot 2H(2)O}(n) (4, hbn = 1,6-hexanediaminebis(nicotinamide)) exhibits a sawtooth (4,4) grid topology. Variable temperature magnetic susceptibility studies on 1 and 3 revealed antiferromagnetic behavior (g = 2.079(6), J = -5.7(2) cm (1) for 1, g = 2.14(2), J(1) = -19(1) cm (1), J(2) = -35(2) cm (1) for 3). Thermal decomposition behavior of 1-4 is also discussed. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:595 / 607
页数:13
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