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Diverse Co(II) Coordination Polymers with the Same Mixed Ligands: Evaluation of Chemical Stability and Structural Transformation.

Authors :
Lee, Chia-Yi
Ye, Yu-Hui
Wang, Song-Wei
Chen, Jhy-Der
Source :
Molecules; Apr2024, Vol. 29 Issue 8, p1748, 14p
Publication Year :
2024

Abstract

Reactions of Co(OAc)<subscript>2</subscript>·4H<subscript>2</subscript>O, Nā€šN'-bis(3-pyridylmethyl)oxalamide (L) and 4,4ā€²-sulfonyldibenzoic acid (H<subscript>2</subscript>SDA) afforded four coordination polymers with the same mixed ligands, {[Co(L)(SDA)(H<subscript>2</subscript>O)<subscript>2</subscript>]·H<subscript>2</subscript>O·CH<subscript>3</subscript>OH}<subscript>n</subscript>, 1, {[Co(L)<subscript>0.5</subscript>(SDA)]·2H<subscript>2</subscript>O·0.5L}<subscript>n</subscript>, 2, {[Co(L)<subscript>1.5</subscript>(SDA)(H<subscript>2</subscript>O)]·H<subscript>2</subscript>O}<subscript>n</subscript>, 3, and {[Co<subscript>2</subscript>(L)<subscript>1.5</subscript>(SDA)<subscript>2</subscript>(H<subscript>2</subscript>O)<subscript>2</subscript>]·4H<subscript>2</subscript>O}<subscript>n</subscript>, 4, which have been structurally characterized using single-crystal X-ray crystallography. Complexes 1ā€“4 are 2D layers, revealing topologies of sql, 2,6L1, (4,4)Ia, and 6L12, respectively, and demonstrating that the metal-to-ligand ratio, solvent system, and reaction temperature are important in determining the structural diversity. The immersion of these complexes into various solvents shows that the structural types govern the chemical stabilities of 1ā€“4. Reversible structural transformation is shown for complexes 1 and 2 upon solvent removal and adsorption, while those of 3 and 4 are irreversible. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14203049
Volume :
29
Issue :
8
Database :
Complementary Index
Journal :
Molecules
Publication Type :
Academic Journal
Accession number :
176904773
Full Text :
https://doi.org/10.3390/molecules29081748