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  • Crystal structure and synchrotron X-ray powder reference pattern for the porous pillared cyanonickelate, Ni(3-amino-4,4′-bipyridine)[Ni(CN) 4 ]
Title: Crystal structure and synchrotron X-ray powder reference pattern for the porous pillared cyanonickelate, Ni(3-amino-4,4′-bipyridine)[Ni(CN) 4 ]
The structure of Ni(3-amino-4,4′-bipyridine)[Ni(CN)4] (or known as Ni-BpyNH2) in powder form was determined using synchrotron X-ray diffraction and refined using the Rietveld refinement technique (R= 8.8%). The orthorhombic (Cmca) cell parameters were determined to bea= 14.7218(3) Å,b= 22.6615(3) Å,c= 12.3833(3) Å,V= 4131.29(9) Å3, andZ= 8. Ni-BpyNH2forms a 3-D network, with a 2-D Ni(CN)4net connecting to each other via the BpyNH2ligands. There are two independent Ni sites on the net. The 2-D nets are connected to each other via the bonding of the pyridine “N” atom to Ni2. The Ni2 site is of six-fold coordination to N with relatively long Ni2–N distances (average of 2.118 Å) as compared to the four-fold coordinated Ni1–C distances (average of 1.850 Å). The Ni(CN)4net is arranged in a wave-like fashion. The functional group, –NH2, is disordered and was found to be in them-position relative to the N atom of the pyridine ring. Instead of having a unique position, N has ¼ site occupancy in each of the fourm-positions. The powder reference diffraction pattern for Ni-BpyNH2was prepared and submitted to the Powder Diffraction File (PDF) at the International Centre of Diffraction Data (ICDD).  more » « less
Award ID(s):
1834750
PAR ID:
10578094
Author(s) / Creator(s):
; ; ; ;
Publisher / Repository:
Cambridge University Press
Date Published:
Journal Name:
Powder Diffraction
Volume:
39
Issue:
1
ISSN:
0885-7156
Page Range / eLocation ID:
20 to 28
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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