Formation of mononuclear rhodium(III) sulfates: 103Rh and 17O NMR study

Applications of nuclear shielding

“…2.1 Group 1 ( 1 H, 2 H, 3 H, 6,7 Li, 23 Na, 39 K, 87 Rb, 133 Cs) 2.1.1 Hydrogen ( 1 H) (I = 1/2). The equilibrium geometry, various bonding features and harmonic vibrational frequencies of antiproliferative drug methotrexate (MTX) were studied by calculations using B3LYP density functional theory (DFT) and time-dependent density functional theory (TD-DFT).…”

“…70 The variation in the separation of the 133 Cs resonance lines with temperature indicates the change in the electric field gradient (EFG) at the Cs sites produced by the (SeO 3 ) 2 À . The crystallisation process of transparent glass-ceramics prepared in the Ga 2 S 3 -GeS 2 -CsCl pseudoternary system was investigated by 133 Cs and 71 Ga solid-state NMR spectroscopies. 71 It was clarified that the nucleating agent role played by gallium with the formation of Ga 2 S 3 and cesium is incorporated very much later into the crystallites during the ceramisation.…”

“…67 The composition change associated with a decrease in the fraction of four-coordinated boron was also measured by the change in the 133 Cs NMR chemical shift value and 11 B MAS NMR spectroscopy. The cesium complexation with 18-crown-6 in various hydrophobic ionic liquids were studied by using 133 Cs NMR spectroscopy. 68,69 The 133 Cs NMR spectrum of CsH 3 (SeO 3 ) 2 crystals changes from seven resonance lines to one resonance line near T m ( = 350 K).…”

“…71 It was clarified that the nucleating agent role played by gallium with the formation of Ga 2 S 3 and cesium is incorporated very much later into the crystallites during the ceramisation. A statical Cs disorder in Cs B1 Mo 12 S 14 was studied by 133 Cs static and MAS NMR and self-consistent ab initio band structure calculations with the scalar relativistic tight-binding linear muffin-tin orbital method in the atomic spheres approximation including the combined correction (LMTO). 72 2.2 Group 2 ( 25 Mg, 43 Ca, 137 Ba) 2.2.1 Magnesium ( 25 Mg) (I = 5/2).…”

“…The constants of formation of the complexes and ion pair (IP) were estimated: KIP = 8 AE 3.5, K1 E 8, K2trans E 1, K2cis E 1 and K3 E 2. 133 The synthesis and characterisation of a novel bis(phosphine)rhodium(III)-porphyrin, [Rh(TPP)(PEtPh 2 ) 2 ]SbF 6 (compound 1; TPP = dianion of 5,10,15,20-tetraphenylporphyrin) was described. The 103 Rh NMR chemical shifts of 1, determined by indirect detection through polarisation transfer from 31 P, were d = 2480, 2558 and 2590 ppm at 213, 300 and 333 K, respectively.…”