NDLI: Bis(<i>N</i>-methylamidino-<i>O</i>-methylurea)copper(II) cation: a planar building block for the construction of hydrogen-bonded rhombic (4, 4) grids

Content Provider	Royal Society of Chemistry (RSC)
Author	Hubberstey, Peter Suksangpanya, Unchulee Wilson, Claire L.
Copyright Year	2000
Abstract	Bis(N-methylamidino-O-methylurea)copper(II) cations and chloride anions self-assemble to form an elegant hydrogen-bonded rhombic (4, 4) grid. The four-fold connectivity of the square planar cation [Cu: 1.957(2), 1.970(2) Å, N..Cu..N 88.91(9)°] arises from the presence of four pairs of N-H donors, set at 90° to each other, which form hydrogen-bonds to four separate chloride anions. The rhombic (4, 4) grid [Cu...Cu separations: edge 10.388(2) Å, major diagonal 15.874(2) Å, minor diagonal 13.403(2) Å] arises from the fact that adjacent cations are twisted through 90° to generate the same hydrogen-bonded supramolecular synthon in all four directions. The sheets adopt a sinusoidal (corrugated) profile. This somewhat surprising observation is thought to result from a compromise between the structural requirements of the supramolecular synthon and the steric requirements of the four juxtaposed methyl groups which form lipophilic channels running parallel to the x-axis
Starting Page	141
Ending Page	144
Page Count	4
File Format	HTM / HTML PDF
ISSN	14668033
Volume Number	2
Issue Number	26
Journal	CrystEngComm
DOI	10.1039/b005851n
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cu Chloride Ion Rhombus Copper Lipophilicity Synthon
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics Materials Science

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Bis(N-methylamidino-O-methylurea)copper(II) cation: a planar building block for the construction of hydrogen-bonded rhombic (4, 4) grids