Four mol-ecular salts made from hexa-methyl-ene-tetra-minium and 2-chloro-4-nitro-benzoate have been synthesized and are reported, namely ammonium hexa-methyl-ene-tetra-minium bis-(2-chloro-4-nitro-benzoate), NH4+·C6H13N4+·2C7H3ClNO4-, (I), hexa-methyl-ene-tetra-minium hydrogen bis-(2-chloro-4-nitro-benzoate), 0.5C6H13N4+·C7H3.50ClNO4-, (II), hexa-methyl-ene-tetra-minium 2-chloro-4-nitro-benzoa...

In the title compound, K(9)Al(3)(PO(4))(6), the anionic substructure is built of inter-linked [PO(4)] and [AlO(4)] tetra-hedra. Each O atom of the [AlO(4)] tetra-hedron is common to a positionally different [PO(4)] tetra-hedron; thus, each [AlO(4)] tetra-hedron is surrounded by four positionally different [PO(4)] tetra-hedra. On the other hand, each [PO(4)] tetra-hedron shares its two O atoms w...

B ernd W rackm eyer* , H eid i E. M aisei, Jü rgen Süß, W olfgang M ilius Laboratorium für Anorganische Chemie der Universität Bayreuth. D-95440 Bayreuth Z. Naturforsch. 51b, 1320-1324 (1996); received March 14, 1996 Tetra-l-alkynylsilanes, 1,1-Organoboration, Siloles, X-Ray Tetra-l-alkynylsilanes, Si(CsCR*)4 with R 1 = 'Bu (1) and SiMe3 (2) react with triethylborane, E t3B. by intermolecular 1...

The title compound, 5(2)-[(5-bromo-pent-yl)-oxy]-1(2),1(14),3(5),5(5)-tetra-tert-butyl-1(7),1(8),1(9),1(10)-tetra-hydro-1(6) H,1(16) H-1(4,12)-dibenzo[b,e][1,7]dioxa-cyclo-dodecina-3,5(1,3)-dibenzena-cyclo-hexa-phan-3(2)-ol, C54H73BrO4, was synthesized from the reaction of tert-butyl-calix[4]arene with 1,5-di-bromo-pentane using K2CO3 in CH3CN. The structure consists of a calixarene unit with a...

The title compound {systematic name: tetra-kis[4-(3-carb-oxy-1-ethyl-6-fluoro-4-hydroxonio-1,4-dihydro-7-quinol-yl)-1-meth-yl-piperazin-1-ium] di-μ(2)-chlorido-bis-[tetra-chlorido-bismuth-ate(III)] tetra-chloride octa-hydrate}, (C(17)H(22)FN(3)O(3))(4)[Bi(2)Cl(10)]Cl(4)·8H(2)O, is composed of edge-shared centrosymmetric dinuclear [Bi(2)Cl(10)](4-) anions, Cl(-) anions, dihydrogen pefloxacinium ...

The Fe atom of the title compound, [Fe(C(12)H(9)ClNO(2))(2)], lies on a crystallographic twofold rotation axis. The Fe(II) atom is four-coordinated in a tetra-hedral geometry by the O and N atoms of the two Schiff base ligands. The O atom of the furan substituent in the ligand unit is not involved in coordination to the Fe atom.

In the title compound, [ZnCl(2)(C(9)H(13)NO)(2)], the Zn(II) ion is coordinated by two Cl(-) anions and two O atoms of two zwitterionic organic ligands in a distorted tetra-hedral arrangement. In the crystal, mol-ecules are linked into sheets parallel to the bc plane by C-H⋯Cl and C-H⋯O hydrogen bonds and weak π-π inter-actions [centroid-centroid distance = 3.669 (1) Å].

Three metallosupramolecular assemblies composed of two bis-NHCs and silver atoms, [4](PF6)2, tetra-NHCs four [7](PF6)4, tri-NHCs three atoms [8](BF4)3, have been prepared. Assemblies [4](PF6)2 [7](PF6)4 feature NHC ligands decorated with terminal olefin groups. Irradiation yielded complex [5](PF6)2 cyclobutane rings linking the bis-NHC ligands. Liberation macrocyclic tetrakisimidazolium salt H4...