Synthesis, crystal structure and 71Ga MAS NMR spectroscopy of a novel gallium phosphatooxalate: [Ga5(OH)2(C10H9N2)(C2O4)(PO4)4]·2H2O

1999 ◽  
pp. 1473-1474 ◽  
Author(s):  
Ching-Yeh Chen ◽  
Peter P. Chu ◽  
Kwang-Hwa Lii ◽  
Kwang-Hwa Lii
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Mas Nmr

Crystal structure of silica-ZSM-12 by the combined use of hgh-resolution solid-state MAS NMR spectroscopy and synchrotron x-ray powder diffraction

1990 ◽  
Vol 94 (9) ◽  
pp. 3718-3721 ◽  
Author(s):  
C. A. Fyfe ◽  
H. Gies ◽  
G. T. Kokotailo ◽  
B. Marler ◽  
D. E. Cox
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Powder Diffraction ◽  
Mas Nmr ◽  
X Ray ◽  
Combined Use

Lithium Ion Mobility in Lithium Phosphidosilicates: Crystal Structure,7Li,29Si, and31P MAS NMR Spectroscopy, and Impedance Spectroscopy of Li8SiP4and Li2SiP2

2016 ◽  
Vol 22 (49) ◽  
pp. 17635-17645 ◽  
Author(s):  
Lorenzo Toffoletti ◽  
Holger Kirchhain ◽  
Johannes Landesfeind ◽  
Wilhelm Klein ◽  
Leo van Wüllen ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Impedance Spectroscopy ◽  
Ion Mobility ◽  
Lithium Ion ◽  
Mas Nmr

scholarly journals Exploring the Structural Chemistry of Pyrophosphoramides: N,N′,N″,N‴-Tetraisopropylpyrophosphoramide

Chemistry ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 149-163
Author(s):  
Duncan Micallef ◽  
Liana Vella-Zarb ◽  
Ulrich Baisch
Keyword(s):  
Crystal Structure ◽  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Hydrogen Bonding ◽  
Nmr Spectroscopy ◽  
Ir Spectroscopy ◽  
Room Temperature ◽  
Intermolecular Hydrogen Bonding ◽  
X Ray Diffraction ◽  
X Ray

N,N′,N″,N‴-Tetraisopropylpyrophosphoramide 1 is a pyrophosphoramide with documented butyrylcholinesterase inhibition, a property shared with the more widely studied octamethylphosphoramide (Schradan). Unlike Schradan, 1 is a solid at room temperature making it one of a few known pyrophosphoramide solids. The crystal structure of 1 was determined by single-crystal X-ray diffraction and compared with that of other previously described solid pyrophosphoramides. The pyrophosphoramide discussed in this study was synthesised by reacting iso-propyl amine with pyrophosphoryl tetrachloride under anhydrous conditions. A unique supramolecular motif was observed when compared with previously published pyrophosphoramide structures having two different intermolecular hydrogen bonding synthons. Furthermore, the potential of a wider variety of supramolecular structures in which similar pyrophosphoramides can crystallise was recognised. Proton (1H) and Phosphorus 31 (31P) Nuclear Magnetic Resonance (NMR) spectroscopy, infrared (IR) spectroscopy, mass spectrometry (MS) were carried out to complete the analysis of the compound.

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