2026-06-26T04:16:02Z https://meral.edu.mm/oai

oai:meral.edu.mm:recid/2199 2021-12-13T02:24:15Z 1582963390870:1582967549708 user-uy

X-ray Diffraction Structure Analyses of [Rbx(NH4)1-x]3H(SO4)2 Mixed Crystals: Nature of H-bonds T.M. Win, K.L. Thwe, Pho Kaung ,Gautham, N., Bajpai, P.K. Structural analyses of [Rbx(NH4)1_x]3H(SO4)2 for x = 0.14, 0.33 and 0.50 (TRAHS) single crystals are performed by X-ray diffraction experiments in order to investigate the hydrogen bond (H-bond) connection in (S0 4·H·...SO4'') dimers. The H-bond length Ro-o is determined from the model for H-bond attached to oxygen atoms. In the study, hydrogen bonding is realised with Ro-o distance being 2.549 Ain (NH4)3H (SO4)2 and 2.492 Å in Rb3H(SO4)2.The H-bond length Ro-o of TRAHS varies with x and is less than that obtained for pure crystals. The values with x = 0.14, 0.33 and 0.50 are 2.449, 2.522 and 2.515 A, respectively. These are close to but still longer than the so-called critical bond length Rc• The observed lattice parameters vary systematically with x showing that the mixed crystals are solid solution of two analogues. All these crystals are monoclinic with the space group C2/c and Z = 4. 2007 http://hdl.handle.net/20.500.12678/0000002199 https://meral.edu.mm/records/2199