Hydrogen bond dynamics of C–H•••O interactions: the chloroform–acetone case. Abstract Spectroscopic evidence for C-H…O hydrogen bonding in chloroform…acetone [Cl(3)CH…O=C(CH(3))(2)] mixtures was obtained from vibrational inelastic neutron scattering (INS) spectra. Comparison between the INS spectra of pure samples and their binary mixtures reveals the presence of new bands at about 82, 130 and 170 cm(-1). Assignment…

Tetrapyridinium mu-oxido-di-mu-sulfato-bis[chloridodioxidomolybdate(VI)] Abstract The title salt, (C(5)H(6)N)(4)[Mo(2)Cl(2)O(5)(SO(4))(2)], comprises four pyridinium cations for each [(MoClO(2))(2)(mu-O)(mu-SO(4))(2)]4- anionic unit. The asymmetric unit consists of three aggregates of the empirical formula. The tetraanionic bimetallic molybdenum(VI) cluster is unprecedented and contains two sulfate and one oxide bridges. This structure constitutes the first example of a non-polymeric compound with terminal oxide,…

Tripyridinium cis-tetrachloridodioxidomolybdate(VI) chloride. Abstract In the title compound, (C(5)H(6)N)(3)[MoCl(4)O(2)]Cl, the pyridinium cations are N-H⋯Cl hydrogen bonded to the anionic [MoCl(4)O(2)](2-) complexes and to the two crystallographically independent chloride anions (located on C2 axes). The Mo(6+) centre adopts a highly distorted octa-hedral geometry, being surrounded by four chloride and two terminal oxide groups. The oxide ligands…

Bis(mu-4-phenylpyridine N-oxide-kappa(2)O:O)-bis[bis(1,1,1,5,5,5-hexafluoropentane2,4-dionato)copper(II)]. Abstract The asymmetric unit of the title compound, [Cu(2)(C(5)HF(6)O(2))(4)(C(11)H(9)NO)(2)], contains one half of the centrosymmetric dinuclear complex. The coordination geometry of the Cu(II) atom is octa-hedral, exhibiting a typical Jahn-Teller distortion. One trifluoro-methyl group is rotationally disordered between two orientations in a 1:1 ratio. Ramos Ana I.; Fernandes Jose A.; Silva Patricia; et…

Diaquobis(1,2-ethanediamine-k2N,N’) copper(II) Bis(4-phenylbenzoate) 2.66 hydrate. Abstract In the title complex, [Cu(C2H8N2)(2)(H2O)(2)](C13H9O2)(2)center dot 2.66H(2)O,the Cu-II centre (located at an inversion centre) is coordinated by two bidentate ethylenediamine (en) ligands and two water O atoms in a typical Jahn-Teller distorted octahedral geometry. The amino groups and the water molecules are disordered over two distinct crystallographic positions with…