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Synthesis, structure and hydrogen sorption properties of a pyrazine-bridged copper(I) nitrate metal-organic framework
Nfor, Emmanuel Ngwang
Burrows, Andrew David
Ndosiri, Bridget Ndoye
Keenan, Luke Lawrence
Offiong, Offiong Efanga
Copper
Pyrazine
Hydrogen sorption
X-ray crystallography
Single crystal structure
Metal-organic framework
A new copper(I) pyrazine-bridged coordination polymer [Cu2(pyz)3(NO3)2]·2DMF] (pyz = pyrazine) (1) has been synthesized and characterized by FT-IR, TG/DTG, DSC and single crystal X-ray diffraction techniques. The X-ray crystallographic result reveals a two-dimensional network structure containing hexagonal pores. Thermal analysis of compound 1 reveals it is stable to 380 °C, and gas sorption studies showed that it adsorbs 1.04 wt% hydrogen at 1 atm and 77 K. Compound 1 crystallizes in a triclinic system, space group P-1 (no. 2), a = 7.9550(2) Å, b = 7.9810(2) Å, c = 11.0660(3) Å, α = 76.328(1)°, β = 71.115(1)°, γ = 84.577(1)°, V = 645.79(3) Å3, Z = 2, T = 150(2) K, μ(MoKα) = 1.709 mm-1, Dcalc = 1.639 g/cm3, 11111 reflections measured (7° ≤ 2Θ ≤ 54.96°), 2951 unique (Rint = 0.0539) which were used in all calculations. The final R1 was 0.0346 (>2σ(I)) and wR2 was 0.0727 (all data).
Atlanta Publishing House LLC
2019-09-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
text/x-fortran
https://www.eurjchem.com/index.php/eurjchem/article/view/1888
10.5155/eurjchem.10.3.195-200.1888
European Journal of Chemistry; Vol. 10 No. 3 (2019): September 2019; 195-200
2153-2257
2153-2249
eng
https://www.eurjchem.com/index.php/eurjchem/article/view/1888/pdf_1888
https://www.eurjchem.com/index.php/eurjchem/article/view/1888/2638
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