N-[6-(Dimethylamino)-9-phenyl-3H-telluroxanthen-3-ylidene]-N-methylmethanaminium hexafluorophosphate monoclinic polymorph
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چکیده
منابع مشابه
A monoclinic polymorph of N-ethoxycarbonyl-N′-(3-phenyl-1H-1,2,4-triazol-5-yl)thiourea
The title compound, C(12)H(13)N(5)O(2)S {systematic name: ethyl N-[N-(3-phenyl-1H-1,2,4-triazol-5-yl)carbamothio-yl]carbamate}, is a monoclinic polymorph (space group P2(1)/c) which crystallizes with three similar independent mol-ecules in the asymmetric unit. The triazole ring makes dihedral angles of 6.6 (2), 8.4 (2) and 10.6 (2)° with the phenyl ring in the three independent molecules. The s...
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In the crystal of the title compound, C(12)H(16)N(2)OS, inversion dimers linked by pairs of N-H⋯S hydrogen bonds occur, generating R(2) (2)(8) loops. The mol-ecules are also linked by weak C-H⋯O hydrogen bonds. The structure is isostructural with that of N'-benzoyl-N,N-diethyl-seleno-urea [Bruce et al. (2007 ▶). New J. Chem.31, 1647-1653].
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The title compound, C(13)H(10)ClNO, (I), is a polymorph of the structure, (II), first reported by Gowda et al. [Acta Cryst. (2008), E64, o462]. In the original report, the compound crystallized in the ortho-rhom-bic space group Pbca (Z = 8), whereas the structure reported here is monoclinic P21/c (Z = 4). The principal difference between the two forms lies in the relative orientations of the ph...
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The asymmetric unit of the title compound, C(18)H(21)N(3)S, contains five mol-ecules. The equivalent bond distances in the five mol-ecules are in excellent agreement, the r.m.s. fit being within 0.007 Å. The five mol-ecules are linked into a chain consisting of alternating pseudo-enanti-omers by N-H⋯S hydrogen bonds supplemented by weak C-H⋯π inter-actions. The action of a glide plane links the...
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A new polymorph of N,N'-bis-(2,6-diisopropyl-phen-yl)formamidine, C(25)H(36)N(2), is reported, which is different from the previously reported ortho-rhom-bic structure. The mol-ecule crystallizes in the E-anti configuration, with tautomeric disorder of the N-bonded H atoms and no clear distinction between imine and amine functionalities. The mol-ecules form hydrogen-bonded dimers with inter-mol...
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ژورنال
عنوان ژورنال: IUCrData
سال: 2021
ISSN: 2414-3146
DOI: 10.1107/s2414314621005459