Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 7 (July 2013)

organic compounds

Acta Cryst. (2013). C69, 798-802    [ doi:10.1107/S010827011301651X ]

Di­benzyl­ammonium hydrogen maleate and a redetermination at 120 K of bis­(di­benzyl­amino)­methane

J. C. Castillo, R. Abonía, J. Cobo and C. Glidewell

Abstract: In di­benzyl­ammonium hydrogen maleate [or di­benzyl­am­monium (2Z)-3-carb­oxy­prop-2-enoate], C14H16N+·C4H3O4-, (I), the anion contains a fairly short and nearly linear O-H...O hydrogen bond, with an O...·O distance of 2.4603 (16) Å, but with the H atom clearly offset from the mid-point of the O...O vector. The counter-ions in (I) are linked by two N-H...O hydrogen bonds to form C22(6) chains and these chains are weakly linked into sheets by a C-H...O hydrogen bond. Bis(di­benzyl­amino)­methane, C29H30N2, (II), crystallizes with two independent mol­ecules lying across twofold rotation axes in the space group C2/c, and the mol­ecules are conformationally chiral; there are no direction-specific inter­molecular inter­actions in the crystal structure of (II).

Formula: C14H16N+·C4H3O4- and C29H30N2

hkldisplay filedownload file

Structure factor file (CIF format) (178.4 kbytes)
[ doi:10.1107/S010827011301651X/yf3037Isup2.hkl ]
Contains datablock I

hkldisplay filedownload file

Structure factor file (CIF format) (262.9 kbytes)
[ doi:10.1107/S010827011301651X/yf3037IIsup3.hkl ]
Contains datablock II


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