The binding of tetraphenylphosphonium (TPP +) to EmrE, a membrane-bound, 110 residue Escherichia coli multidrug transport protein, has been observed by 31P cross-polarisation–magic-angle spinning nuclear magnetic resonance spectroscopy (CP–MAS NMR). EmrE has been reconstituted into dimyristoyl phosph...
The structural role of phosphorus in glass samples of variable alkali/aluminium ratio has been investigated in the range of 1 to 6 mol% P 2 O 5 , using a combination of one and two dimensional 31 P MAS NMR spectroscopy. The samples have the general formula x Na 2 O–(1 x )Al 2 ...
31P CP/MAS NMR data The 31P CP/MAS NMR spectra of polycrystalline tetra-nuclear Cu4[S2P(O-i-C3H7)2]4, I, hexa-nuclear Cu6[S2P(OC2H5)2]6, II, and octa-nuclear Cu8[S2P(O-i-C4H9)2]6(S), III, are shown in Fig. 1. The tetra-nuclear complex I displays four 31P resonance...
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Ivanov, A.V., Lutsenko, I.A., Korneeva, E.V.et al.Binding of Au3+from solutions by nickel(II) and cadmium diisopropyl dithiophosphates: MAS31P NMR, structure and thermal behavior of the polynuclear complex [Au2{S2P(O-iso-C3H7)2}2]n.Russ J Coord Chem38, 430–439 (2012). http...
P MAS NMR investigations of crystalline and glassy NASICON-type phosphates have been carried out. The origin for the two signals in the case of the crystalline compounds is discussed. The spectra show the presence of pyrophosphate units in all glasses studied along with various other phosphate spec...
31P MAS-NMR STUDY OF THE LAYERED FERRIELECTRIC CuInP2S6 The order-disorder, ferrielectric-paraelectric transition in lamellar CuInP2S6 is studied using 31P solid-state MAS-NMR spectroscopy in the temperature range 25570K). The presence of the ferrielectric type resonance in the paraelectric r.....
The P MAS NMR spectra were measured and analyzed for the two phosphate glasses that contain distinct metals (i.e., In or Ba), different amounts of PbO, and the same content of POand AlO. The P MAS NMR spectra for the two glasses have a single isotropic peak at -3.77 or -4.76 ppm...
The mixed ligand P2CuN2 copper(I) complexes [Cu(PPh3)2(MeCN)2]X have been studied by one- and two-dimensional 31P CP MAS NMR spectroscopy for X = PF6, BF4 or ClO4 and single crystal X-ray diffraction for X = PF6 and ClO4, completing availability of precise structural data for this...
The structure of (50− x/2)Na 2O– xBi 2O 3–(50− x/2)P 2O 5 glasses was investigated by Bi L III XANES and EXAFS, 31P double-quantum MAS-NMR and 23Na MAS-NMR. From XANES and EXAFS analyses, Bi 3+ environment is found to be similar to that in the crystalline referenc...