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pro vyhledávání: '"Peter G. Jones"'
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 67:o249-o254
The title compound, C(6)H(15)N(2)(+)·C(2)H(6)NO(4)S(2)(-), crystallizes as a 0.11-hydrate, (I), in the space group C2; the asymmetric unit consists of two cations (one of each enantiomer), one anion on a general position, two half anions, each with
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 69:1534-1536
The title compound, C3H6N2O, crystallizes with imposed twofold symmetry in the space groupI41/a. The five-membered ring displays a half-chair conformation. N—H...O hydrogen bonds connect the molecules to formR22(8) rings and thence ribbons parallel
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 58:o665-o668
In the isomeric title compounds, viz. 2-, 3- and 4-(chloromethyl)pyridinium chloride, C(6)H(7)ClN(+).Cl(-), the secondary interactions have been established as follows. Classical N-H.Cl(-) hydrogen bonds are observed in the 2- and 3-isomers, whereas
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 58:m347-m350
In the title compounds, [Ru(C10H15)(C11H11)], (III), [Ru(C10H15)(C19H17)], (IV), and [Ru(C19H17)2], (V), respectively, the coordinating ring systems are planar and parallel, with the Ru atoms lying at perpendicular distances of Ru–Cp* 1.790 (1) A a
Autor:
Piotr Kuś, Peter G. Jones
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 67:o131-o133
A new polymorph, (Ib), of the title compound, C(8)H(8)Br(2), crystallizes in the space group P2(1)/n, the same as the known polymorph (Ia) but with Z = 2 (imposed inversion symmetry) rather than Z = 4. The molecular structures are closely similar bec
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 66:m86-m88
In the title compound, [Zr(C(16)H(13)P)Cl(2)], the geometry at the metal atom is distorted tetrahedral; the Cl-Zr-Cl angle is 101.490 (16) degrees and the cyclopentadienyl (Cp) centroids subtend an angle of 122.63 (3) degrees at the Zr atom. The P at
Autor:
Peter G. Jones, Ionel I. Mangalagiu
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 65:o300-o302
Two polymorphs of the title compound [systematic name: 1-(2,4-dihydroxyphenyl)ethanone], C(8)H(8)O(3), were investigated. The known structure [designated (I-M); P2(1)/c, Z = 4; previously investigated at room temperature by Robert, Moore, Eichhorn &
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 55:2080-2084
N,N-Disulfonylated 1-adamantylamines, hitherto elusive, can easily be prepared by reacting 1-bromo-adamantane with silver disulfonylamides suspended in anhydrous benzene. Structures have been determined for N,N-bis(methanesulfonyl)-1-adamantylamine,
Autor:
Peter G. Jones, Matthias Freytag
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 55:1682-1685
The title compound, C 5 H 5 ClNO +. Cl -. H 2 O, shows typical features of pyridinium cations (i.e. wider angles at nitrogen and narrower angles at C-2 and C-6 than in unprotonated pyridines). Short C-Cl and C-O bonds may indicate mesomeric stabiliza
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 55:1542-1545
In the centrosymmetric formula unit of the title complex, C 8 H 16 O 4 .2C 4 H 9 N 3 S, the 1,4,7,10-tetraoxacyclododecane molecule adopts the biangular [66] conformation and the thiosemicarbazone molecules are linked to the macrocycle via a long and