Abstract
The crystalline trihydrate and trihydrated hydrochloric acid adduct of a new double betaine, namely, L·3H2O (1) and L·HC1·3H2O (2) [L = -O2CCH2N+ (CH2CH2)3N+ CH2CO-2], have been characterized by X-ray crystallography. The double-betaine skeletons of L in (1) and (2) are structurally similar, both adopting an “S-shaped” conformation with approximate C2 symmetry. Hydrogen bonding between molecular species leads to a two-dimensional layer structure in (1) and a one-dimensional ribbon structure in (2).
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Acknowledgment
This work is supported by a Hong Kong Research Grants Council Earmarked Grant for Research (Ref. No. CUHK 89/93E).
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Wu, DD., Mak, T.C. Molecular structure and hydrogen bonding of 1,4-diazoniabicyclo[2.2.2]octane-1,4-diacetate in its crystalline trihydrate and trihydrated hydrochloric acid adduct. J Chem Crystallogr 27, 11–17 (1997). https://doi.org/10.1007/BF03543082
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DOI: https://doi.org/10.1007/BF03543082