trans-4,5-Dihydroxy-1,3-diphenylimidazolidine-2-thione
نویسندگان
چکیده
منابع مشابه
trans-4,5-Dihydroxy-1,3-diphenylimidazolidine-2-thione
In the title compound, C(15)H(14)N(2)O(2)S, the five-membered ring adopts an envelope conformation and the two hydr-oxy groups lie on opposite sides of the ring. The six-membered rings are oriented at a dihedral angle of 22.63 (3)°. In the crystal structure, inter-molecular O-H⋯S and O-H⋯O hydrogen bonds link the mol-ecules into a two-dimensional network.
متن کاملtrans-4,5-Dihydroxy-1,3-bis(4-methoxyphenyl)imidazolidine-2-thione
In the title compound, C(17)H(18)N(2)O(4)S, where one of the N-4-methoxy-phenyl fragments is disordered over two sets of sites, the five-membered ring exhibits a nearly half-chair conformation and the two hydroxyl groups lie on opposite sides of the five-membered ring. In the crystal, the mol-ecules are linked into sheets parallel to (100) via O-H⋯O and O-H⋯S hydrogen bonds.
متن کامل1,3-Dibenzylimidazolidine-2-thione
In the title compound, C(17)H(18)N(2)S, the imidazolidine ring adopts a twisted conformation. In the crystal, mol-ecules are linked by slipped π-π inter-actions between the benzene rings of neighbouring mol-ecules [centroid-to-centroid distance = 3.903 (2) Å].
متن کاملPerhydrobenzimidazole-2-thione
The studied crystal of the title compound, C(7)H(12)N(2)S, is a racemic mixture of two isomers, viz. S,S and R,R. The two isomers share the same position on a mirror plane in the space group P2(1)/m; thus all atoms except one are disordered between two positions in a 1:1 ratio. Inter-molecular N-H⋯S hydrogen bonds link the mol-ecules into chains propagating in the [010] direction.
متن کاملIEEE Trans. Knowl. Data Eng., 13(2):298–315, 2001.
References [1] Leonidas Fegaras. A new heuristic for optimizing large queries. [2] Toshihide Ibaraki and Tiko Kameda. On the optimal nesting order for computing n-relational joins. Optimizing large join queries using a graph-based approach. [5] Guido Moerkotte and Thomas Neumann. Analysis of two existing and one new dynamic programming algorithm for the generation of optimal bushy join trees wi...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s160053680903548x