CRYSTAL STRUCTURE OF BIS[ 1-{(3,5-DIMETHYL-1H-PYRAZOL-1-YL)METHYL}-3,5-DIMETHYL- 1H-PYRAZOL-2-IUM] HEXACHLOROURANATE(IV): [H2C(3,5-Me2pz)(3,5-Me2pzH)]2[UCl6]

uranium bis(3 5-dimethylpyrazol-1-yl)methane pyrazolium crystal structure short contacts.

ULTINUCLEAR NMR STRUCTURAL STUDY OF NOVEL y-IMINOPHOSPHONATE AND PHOSPHINE OXIDE DERIVATIVES, SOLVOTHERMAL SYNTHESES, CRYSTAL STRUCTURE, AND PHOTOLUMINESCENT PROPERTIES OF TWO Cu(I) COORDINATION POLYMERS CONSTRUCTED BY BISIMIDAZOLE LIGANDS, ...

In the solid state structure of 1 several short intermolecular N—H N and C—H Cl contacts are identified suggesting the presence of hydrogen bonds. <...> The anionic tris(pyrazolyl)borate (Tp) ligands have been used with success as supporting ligands in the molecular chemistry of the f-block elements, actinides in particular [ 1—7]. <...> These ligands provide an efficient protection of the metallic center and the possibility of tuning the steric and electronic properties of the complexes through the introduction of substituents in the pyrazolyl groups. <...> As a part of our research in this area we decided to study bis(3,5-dimethylpyrazol-1-yl)methane (Bpm*) complexes of uranium, and here we report the crystal structure of [H2C(3,5-Me2pz)(3,5Me2pzH)]2[UCl6] complex (1). <...> X-ray data were collected at 150 K on a Bruker APEX II CCD diffractometer using graphite monochromated MoKh radiation (y = 0.71069 Е) at 50 kV and 30 mA. <...> Hydrogen bond distances and angles of some N—H precisely, there are four short contacts with H Cl distances of less than 2.95 Е, the shortest of which N and C—H Cl contacts in 1 are presented in Table 1. <...> Cl contacts (shown in Fig. 2) that can be attributed to H-bonds according to the classical definirr [27 ]. <...> Bossй E., Den Auwer C., Berthon C., Guilbaud P., Grigoriev M.S., Nikitenko S., Le Naour C., Cannes C., Moisy P. // Inorg. <...> The X-ray diffraction study of a single crystal with the composition [H2C(3,5-Me2pz)(3,5Me2pzH)]2[UCl6] (1) is performed. <...> The structural unit consists of two separated [H2C(3,5-Me2pz)(3,5-Me2pzH)] cations and a UCl62 anion. <...> In the solid state structure of 1 several short intermolecular N—HѱN and C—HѱCl contacts are identified suggesting the presence of hydrogen bonds.! <...>

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