Design of novel bilayer compounds of the CPO-8 type containing 1D channels

Inorganic Chemistry
Kjell Ove Kongshaug, Helmer Fjellvåg

Abstract

The reaction between Zn(NO3)2.6H2O and 5-aminoisophthalic acid (aip) in a mixture of diethylformamide (DEF) and ethanol resulted in [Zn(C8H5NO4)(C5H11NO)]n (CPO-8-DEF). This compound is composed of infinite 2D layers with tetrahedral Zn atoms and aip ligands in a triangular topology. The DEF molecules are bonded to Zn, and within each layer, the DEF molecules are oriented in the same direction, while in the subsequent layer, the DEF molecules are oriented in the opposite direction. By introduction of the pillaring ligands 4,4-bipyridine (BPY), 1,2-di-4-pyridylethylene (DPE), 1,2-di-4-pyridylethane (DPA), and 1,3-di-4-pyridylpropane (DPP) into mixtures of N,N'-dimethylformamide and water with Zn(NO3)2 and aip, we have successfully synthesized a series of related pillared bilayer compounds with the same common triangular Zn(aip) layer structural motif as that observed in CPO-8-DEF. The compounds are denoted as CPO-8-BPY ([Zn(C8H5NO4)(C10H8N2)(0.5)]n.3nH2O), CPO-8-DPE ([Zn(C8H5NO4)(C12H10N2)(0.5)]n.2.5nH2O), CPO-8-DPA ([Zn(C8H5NO4)(C12H12N2)(0.5)]n.2.5nH2O), and CPO-8-DPP ([Zn(C8H5NO4)(C13H14N2)(0.5)]n.3nH2O). In all cases, the pillars create spaces inside the bilayers that result in 1D channels running along the [010] directions ...Continue Reading

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Citations

Dec 7, 2007·Chemical Communications : Chem Comm·Gregory J McManusMichael J Zaworotko
Jan 1, 2010·Acta Crystallographica. Section E, Structure Reports Online·Cheng-You Wu, Chia-Her Lin
Nov 9, 2011·Acta Crystallographica. Section E, Structure Reports Online·Cheng-You Wu, Chia-Her Lin
Nov 24, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Hai-Ning WangZhong-Min Su
Aug 25, 2021·Chemistry : a European Journal·Jihyun LeeMinyoung Yoon

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