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dl-3-Aminoisobutyric Acid Monohydrate by A. J. Dobson; R. E. Gerkin is a Chemistry article available to read on EtoBox.
What is dl-3-Aminoisobutyric Acid Monohydrate about?
The title acid, 3-amino-2-methylpropanoic acid monohydrate, C4HqNO2.H20, crystallized in the centrosymmetric space group Pbca in the zwitterionic form. The three H atoms on N, which are involved in hydrogen bonding, are ordered. The three intermolecular N--H.--O hydrogen bonds have N...O distances ranging from 2.758(2) to 2.809(2),~ and N--H...O angles ranging from 149(2) to 171 (1) °. The two intermolecular O--H...O hydrogen bonds have O...O distances 2.739 (2) and 2.755 (2) A, and O--H...O angles 170 (2) and175 (2) ° . Each acid molecule and its associated water molecule are directly hydrogen bonded to five acid molecules and two water molecules; the structure comprises two subsets of molecules which are not cross-linked by these hydrogen bonds. Through basic second-level graphs, approximately two-thirds of the hydrogen-bonding patterns are finite and one-third are chains; there is a single ring pattern, which occurs about a center of symmetry.
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It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- A. J. Dobson; R. E. Gerkin
- Publisher
- International Union of Crystallography; Blackwell Publishing Inc.; International Union of Crystallography (IUCr); Wiley (ISSN 0108-2701)
- Published
- 1998
- Language
- EN
- Field
- Chemistry (Physical Sciences)