Complexes with macrocyclic ligands. II. The crystal structures of HgCl2•18-crown-6 and CdCl2•18-crown-6, and the FAB mass spectrum of HgCl2•18-crown-6
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منابع مشابه
Crystal structures of the dinitrate-bis-(acetylenedicarboxylate) and acetylenedicarboxylate pseudorotaxane complexes of [24-pyrimidinium crown 6]
The reaction of [24-Pyrim C6][NO3]6 ! 8H2O with the monopotassium salt of acetylenedicarboxylic acid yielded single crystals of [24-Pyrim C6][C4O4]2[NO3]2 ! 7 H2O, (1). The compound crystallized in the triclinic space group P1, with a = 9.731(8) Å, b = 10.953(9) Å, c = 14.270 (14) Å, a = 108.06(7)", b = 94.86(7)", c = 99.01(7)", Z = 1, R = 0.0737, R¢ = 0.1024, and 3709 independent reflections. ...
متن کاملDibenzo-18-crown-6
The asymmetric unit of the title compound, C(20)H(24)O(6), contains two mol-ecules that are identical within standard deviations concerning bond lengths and angles as well as their conformations. In the crystal structure, weak C-H⋯O inter-actions help to consolidate the packing.
متن کامل(18-Crown-6)(trifluoromethanesulfonato)sodium
The title compound, [Na(CF(3)O(3)S)(C(12)H(24)O(6))], features a sodium cation that is coordinated by eight O atoms in an irregular hexa-gonal bipyramidal environment. The equatorial positions are occupied by the six O atoms of an 18-crown-6 ether ring. In the axial positions, there is one O atom of a trifluoro-methane-sulfonate anion and an ether O atom of a symmetry-equivalent crown ether rin...
متن کاملFormation and Crystal Structures of the Hydrates of 18-Crown-6 [1]
Z. Naturforsch. 52 b, 615-619 (1997); received January 15, 1997 Crown Ether, Crystal Structure, Hydrate, Hydrogen Bonding, Melting Diagram The melting diagram of the system 18-crown-6/water has been set up and the existence of four binary hydrates confirmed. Crystal structures have been determined for three of these, in addition to that for the hexahydrate already published. The hydrates are mo...
متن کاملHydration to benzo-15-crown-5, benzo-18-crown-6 and the benzo-18-crown-6-potassium ion complex in the low-polar organic solvents.
The coextraction of water with benzo-15-crown-5 (B1SC5), benzo-18-crown-6 (B18C6) and the B18C6-K+ complex into seven low-polar solvents, i.e., carbon tetrachloride (CTC), chloroform (CF), dichloromethane (DCM), 1,2-dichloroethane (1,2-DCE), benzene (BZ), chlorobenzene (CB) and o-dichlorobenzene (o-DCB), has been investigated. The mean hydration number, nH2O, of these solutes in the water-satur...
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1984
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v84-058