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Abstract:
Two new supramolecular complexes, [Cu-2(Pra(2)biim)(2)(H2O)(2)].2H(2)O (1) and [Mn(Pra(2)biim)(H2O)(2)](n) (2) (H(2)Pra(2)biim = l,l'-di(propionic acid)-2,2'-biimidazole) have been prepared and structurally characterized by thermogravimetric analysis, elemental analysis, IR spectra and single-crystal X-ray diffraction. Single-crystal X-ray diffraction analysis reveals that complex 1 crystallizes in the triclinic, space group P (1) over bar with a = 8.403, b = 9.60970(10), c = 10.5681(2) angstrom, V= 736.272(16) angstrom(3), Z= 1 ,D-C= 1.695 g/cm(3), F(000) = 386, GOOF = 1.156, R(I> 2 sigma(1)) = 0.0396 and wR (I > 2 sigma(I)) = 0.1060, and exhibits a dinuclear structure formed by the connection of Cu2+ ions with two bridging Pra(2)biim(2-) ligands. Complex 2 crystallizes in the monoclinic, space group Pc with a = 9.058(4), b = 5.2745(16), c = 17.591(7) angstrom, V= 733.2(5) angstrom(3), Z = 2, D-c = 1.663 g/cm(3), F(000) = 378, GOOF = 1.060, R(I > 2 sigma(I)) = 0.0885 and wR(I > 2 sigma(l)) = 0.2199, and the Pra(2)biim(2-) ligands link Mn2+ ions to a 6 2D sheet structure. The Pra(2)biim(2-) ligand shows two different types of coordination modes. Moreover, hydrogen bonds further stabilize the 3D supramolecular architecture. The magnetic behavior in the temperature range (2 similar to 300 K) reveals weaker antiferromagnetic interactions between the Cu2+ ions in 1.
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CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
ISSN: 0254-5861
CN: 35-1112/TQ
Year: 2018
Issue: 4
Volume: 37
Page: 631-639
0 . 6 9 5
JCR@2018
5 . 9 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:209
JCR Journal Grade:4
CAS Journal Grade:4
Cited Count:
WoS CC Cited Count: 1
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1