The asymmetric unit of title hydrated salt, C22H46N4 (2+)·2Cl(-)·4H2O, comprises half a centrosymmetric dication, one Cl(-) anion and two water mol-ecules of crystallization. The structure determination reveals that protonation has occurred at diagonally opposite amine N atoms, and that the dication features intra-molecular N-H⋯N hydrogen bonds. In the crystal, a three-dimensional artchitecture...

By means of EPR spectroscopy the behaviour of the vanadocene dichloride (I), Cp(2)VCl(2) (Cp=eta(5)-C(5)H(5)), in various deoxygenated and non-deoxygenated physiological media and therapeutic solution as well as in blood plasma and stabilized human blood was studied. On the basis of measured values of isotropic spectroscopic splitting factor g(iso) and isotropic hyperfine coupling constant A(is...

conclusions the risk of ra increased with delayed menarche, advanced maternal age at first delivery and early age at menopause. however, longer duration of breast-feeding, parity, large number of children and consumption of ocs were found as protective independent variables against ra. methods this case-control study was conducted on 231 patients with ra and 238 controls among females aged 26 -...