2-Amino-1-(2-carboxylatoethyl)pyrimidin-1-ium monohydrate
نویسندگان
چکیده
In the title structure, C(7)H(9)N(3)O(2)·H(2)O, there are two formula units in the asymmetric unit. The mol-ecule is a zwitterion, containing a quaternary N atom and a deprotonated carboxyl group, with C-O distances in the range 1.256 (2)-1.266 (3) Å. The two independent mol-ecules form a hydrogen-bonded R(2) (2)(16) dimer about an approximate inversion center via N-H⋯O hydrogen bonds, with N⋯O distances of 2.766 (2) and 2.888 (2) Å. O-H⋯O hydro-gen bonds involving the water mol-ecules and additional N-H⋯O hydrogen bonds link these dimers, forming double chains.
منابع مشابه
Eight salt forms of sulfadiazine.
Proton transfer to the sulfa drug sulfadiazine [systematic name: 4-amino-N-(pyrimidin-2-yl)benzenesulfonamide] gave eight salt forms. These are the monohydrate and methanol hemisolvate forms of the chloride (2-{[(4-azaniumylphenyl)sulfonyl]azanidyl}pyrimidin-1-ium chloride monohydrate, C(10)H(11)N(4)O(2)S(+) · Cl(-) · H2O, (I), and 2-{[(4-azaniumylphenyl)sulfonyl]azanidyl}pyrimidin-1-ium chlori...
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