The donor properties of pyrophosphate derivatives. V. Complexes of molybdenum(V) oxychloride, uranyl ion, and thorium(IV) ion with octamethylpyrophosphoramide

Joesten, Melvin D.

doi:10.1021/ic50054a042

Cited by 14 publications

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“…In the mid-twentieth century, apart from its use as a pesticide, Schradan was also studied for its chelation ability with numerous metal centres. These studies mainly dealt with the complexation of Schradan with alkali earth, transition and actinide metals, as well as Sn 4+ [5][6][7][8][9]. Although the complexation ability was proven through numerous analytical methods, including X-ray diffraction (XRD), no industrial or chemical use for these complexes was discussed.…”

Section: Introductionmentioning

confidence: 99%

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

2021

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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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Section: Introductionmentioning

confidence: 99%