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The Hydrogendifluoride Anion in an Asymmetric Crystalline Environment: The Crystal and Molecular Structure of Trithioureatellurium(II) Di(Hydrogendifluoride)

Mark A. Beno ; Chemistry and Materials Science and Technology Divisions, A.rgonne National Laboratory, Argonne, IL 60439, USA
Richard Sundell ; Chemistry and Materials Science and Technology Divisions, A.rgonne National Laboratory, Argonne, IL 60439, USA
Jack M. Williams ; Chemistry and Materials Science and Technology Divisions, A.rgonne National Laboratory, Argonne, IL 60439, USA

Sažetak

The crystal structure of Te[CS(NH2l2h(FHF)2, I , was determined
at 133K using single crystal x-ray diffraction techniques. A
total of 6042 independent reflections were observed for the monoclinic
crystals (space group P21/c, No. 14, a = 0.5846(3), b = 2.046(1),
c = 1.1433(7) nm, (J = 94.69(5) 0 , Ve= 1.363(1) nm3, (Z = 4), in the
range 4.0° s 219 s 70.0° of which 5243 had F0
2 > 3a (F0 2). The trithiourea- tellurium (II) molecules crystallize as dimeric distorted square planar cations [Te(tu)3]24+ (tu = thiourea) located about an inversion center. The cations are linked by N-H ... F hydrogen bonds. The environment about the two independent (FHFt anions is decidedly asymmetric and therefore the hydrogen atoms are not centered between the fluorine atoms.

Ključne riječi

Hrčak ID:

194140

URI

https://hrcak.srce.hr/194140

Datum izdavanja:

20.10.1984.

Posjeta: 535 *