Reported here is an organic-cation templated 4-connected anionic boron imidazolate framework [N(CH(3))(4)][Cd(SH)(2)B(im)(4)] (ABIF-1, im = imidazolyl), which is synthesized from the reaction of the supertetrahedral Cd(10)S(4)(SPh)(12) cluster with [N(CH(3))(4)]Cl and NaB(im)(4). The work represents an important step in the expansion of boron imidazolate frameworks from neutral BIFs to anionic ...

A versatile methodology is reported for the synthesis of anionic NHCs featuring a 5-, 6-, or 7-membered saturated heterocyclic core. Lewis acid promoted exocyclic ring closure generates systems in which the pendant borate functionality is incorporated via a CH2 linker, allowing for electronic and steric isolation of the anionic component. Hence, a library of NHCs can be accessed which incorpora...

The present work was conducted on the effect of surfactant on the dissolution rate of ibuprofen tablets. The cationic (Cetyl Trimethyl bromide) and anionic (Sodium dodecyl sulphate) surfactant present in the dissolution media have remarkable effect on the dissolution rate of Ibuprofen. Maximum dissolution was obtained in the presence of anionic surfactant (Sodium dodecyl sulphate) at 0.5% conce...

1. The members of the homologous series of anionic detergents, the sodium salts of the sulfated straight chain alcohols with the general formula C(n)H(2n+1).SO(3).Na, are hemolytic, the lytic activity being at a maximum when the compound contains 14 carbon atoms in the chain. In systems in which lysis is comparatively rapid, the hemolytic effect increases with increasing pH, but in systems cont...