A zinc–nicotinate complex, {[Zn(na)2(µ-pbix)]∙H2O}n (1), was obtained from the reaction of
zinc(II) acetate with nicotinic acid (Hna) and 1,4-bis(imidazol-1-ylmethyl)benzene
(pbix) in water at 120 °C under hydrothermal conditions and characterized by elemental analysis,
IR spectroscopy, single crystal and powder X-ray diffraction. The thermal
stability and luminescent property for 1
were also reported. The asymmetric unit of 1
consists of one zinc(II) center, one pbix ligand, two na anions and one
non-coordinated water molecule, giving a formula of {[Zn(na)2(µ-pbix)]∙H2O}n. The Zn(II) ion
is coordinated by two nitrogen atoms from two different 1,4-bis(imidazol-1-ylmethyl)benzene
ligands and two oxygen atoms from two different nicotinate (na) anions, thus showing a distorted
tetrahedral geometry.
The adjacent Zn(II) ions are linked into an infinite 1D zigzag
chain by 1,4-bis(imidazol-1-ylmethyl)benzene ligands. Grand canonical Monte
Carlo (GCMC) simulations were also performed to compute single-component H2
adsorption isotherms at a pressure range of 0.01–100 bar and at 298 K and 77 K.
The maximum H2 uptake in 1
was found as 68 cm3/ g STP at 100 bar and 77 K. This study will be
useful to accelerate the hydrothermal synthesis of new coordination polymers
for gas storage applications.
Primary Language | English |
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Subjects | Engineering, Chemical Engineering |
Journal Section | Articles |
Authors | |
Publication Date | July 13, 2017 |
Submission Date | June 27, 2017 |
Acceptance Date | September 11, 2017 |
Published in Issue | Year 2017 Volume: 4 Issue: 1 |