Spectrophotometric determination of 1, 3-dipropyl urea and 1, 3-dibutyl urea
نویسندگان
چکیده
منابع مشابه
1-(3-Chlorobenzyloxy)urea
The asymmetric unit of the crystal structure of the title compound, C(8)H(9)ClN(2)O(2), contains four independent mol-ecules. The dihedral angles between the urea N-(C=O)-N planes and the benzene rings are 83.3 (3), 87.8 (1), 89.1 (1) and 17.5 (2)° in the four mol-ecules. Extensive N-H⋯O hydrogen bonding is present in the crystal structure.
متن کامل1-(3-Phenylpropyl)urea
In the crystal of the title compound, C(10)H(14)N(2)O, double supra-molecular layers of PhCH(2)CH(2)CH(2)NHC(O)NH(2) are formed parallel to the bc plane by inter-molecular N-H⋯O hydrogen bonding, with R(2) (2)(8) and R(2) (1)(6) motifs in the b- and c-axis directions, respectively. The mean plane of the C(ar)-C-C group makes a dihedral angle of 84.8 (2)° with the benzene ring.
متن کامل1-(3-Chlorophenyl)-3-(4-nitrophenyl)urea
In the title compound, C(13)H(10)ClN(3)O(3), prepared by the reaction of 1-chloro-3-isocyanato-benzene with 4-nitro-benzenamine, the two substituent benzene rings are roughly coplanar [inter-ring dihedral angle = 8.70 (7)°]. In the crystal, mol-ecules make cyclic inter-molecular associations through two urea-nitro N-H⋯O hydrogen bonds, forming a chain structure [give chain direction] in which t...
متن کامل1-(3-Fluorophenyl)-3-(4-nitrophenyl)urea
In the title compound, C(13)H(10)FN(3)O(3), the dihedral angle between the fluoro-phenyl and nitro-phenyl ring planes is 6.51 (9)°. The crystal structure features N-H⋯O hydrogen bonds.
متن کامل1-(3-Chlorophenyl)-3-(1-p-tolylimidazolidin-2-ylidene)urea
In the crystal structure of the title compound, C(17)H(17)ClN(4)O, the existence of only one 2-imino-oxo of the five possible N-amino-imino/O-keto-hydr-oxy tautomers is observed and the dihedral angle between the aromatic rings is 29.78 (11)°. The mol-ecular conformation is stabilized by intra-molecular C-H⋯N, N-H⋯O and C-H⋯O hydrogen bonds, in each case generating a six-membered ring. In the c...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1974
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.23.1202