Formula (I) wherein R1 and R2 are each a hydrogen atom or a CHR3COOH radical, where R3 is a hydrogen atom or a methyl or ethyl radical and C 12 H 25 is a lauryl radical or a mixture of C 8-18 alkyl radicals the average number of carbon atoms in the alkyl radical being twelve...
This invention is concerned with a novel group of unsaturated ethers having the following general formula R-O-(CnH2n--O) m-CnH2n-2-X wherein R represents an aromatic radical, X represents chlorine, bromine, or hydrogen, m is an integer not greater than 4, and n is an integer from ...
Formula (I) wherein R1 and R2 are each a hydrogen atom or a CHR3COOH radical, where R3 is a hydrogen atom or a methyl or ethyl radical and C 12 H 25 is a lauryl radical or a mixture of C 8-18 alkyl radicals the average number of carbon atoms in the alkyl radical being twelve...
The mesostructured lamellar phases with the general formula [CnH2n+1NH3]4Ge4S10 (n=12, 14, 16, 18) were synthesized by metathesis of alkyl ammonium chloride surfactants and Na4Ge4S10 in aqueous medium. The crystal structures of the phases with n=12 and 14 were determined by single-...
The thermal behaviour and some relationships between the physical properties and structure of complexes of general formula (n-CnH2n+1NH2)2CuCl2, with n = 10, 12, ċ 18, have been investigated by DSC and X-ray powder diffraction techniques. The high enthalpy solid—solid phase transitions ...
This invention concerns certain new mixed ethers having the general formula, R-O-CH(R") CnH2n-O-R' wherein R and R' are different aromatic radicals, one of them being a neutral radical of the xenane, i. e. diphenyl, series, and R" is hydrogen or an alkyl radical. Such ethers ar...
The room temperature single-crystal structures of the inorganic鈥搊rganic layered perovskite-type hybrids of general formula [(CnH2n+1NH3)2PbI4] (n = 12, 14, 16 and 18) have been determined. The four compounds each display two reversible phase transitions above room temperature, with phases...
thermally stable working fluid suitable for operating in the range of about -50C up to 350C, comprising as the major component at least one compound of formula (I): CnH2n+2 wherein n is between 9 and 20, and wherein the compounds of formula (I) have at least three branched methyl ...
•New members of the Ni5(OH)6(CnH2n−4O4)2 series with n = 10 and n = 12.•Synthesis by controlled mixing of reactants followed by hydrothermal treatment.•Spin-glass state below 19 K in Ni5(OH)6(CnH2n−4O4)2 series.doi:10.1016/j.solidstatesciences.2014.07....
the latter are the so called layer perovskitehalide salts with general formula (RNH3)2MX4, where Ris an organic group, M is a bivalent 3d ion or Cd, and X ahalogen.2 In these compounds, whose structures areroughly based on the tetragonal K,NiF, lattice, layers ofcorner-sharing MX, ...