Crystal Structure of [Cu(en)2][Hg(SCN)4]

Details Crystal Structure of [Cu(en)2][Hg(SCN)4] Crystal Structure of [Cu(en)2][Hg(SCN)4]

Aug 1950

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1950natur.166..357s&link_type=abstract

Nature, Volume 166, Issue 4217, pp. 357-358 (1950).

Other

Scientific paper

CRYSTALS of the compound [Cu(en)2][Hg(SCN)4] were kindly supplied by the Chemistry Department of Birkbeck College and an X-ray investigation was carried out to determine its complete crystal structure. The complex Co[Hg(CNS)4] has already been subject to X-ray investigation1, showing that as these crystals were tetragonal with space group I&4bar there was good evidence that the thiocyanate groups would be tetrahedrally situated about the mercury atom. A study of the copper di-ethylenediamine complex has revealed that although the sulphurs of the thiocyanates were still tetrahedrally co-ordinated to the mercury atom, the presence of the Cu(en)2 was now sufficient to destroy the tetrahedral arrangement of the remainder of the thiocyanate groups with respect to the mercury atom, thus indicating that there is a flexibility of the -SCN group arising out of a rotation of the group about the Hg-S bond; this flexibility depends on the arrangement of the neighbouring groups. In cases where the surroundings of the Hg(SCN)4 are symmetrically situated about it, as in the Co[Hg(SCN)4] complex, the thiocyanate groups can take positions compatible with the external symmetry of the crystal. On the other hand, if there is no symmetry around the Hg(SCN)4 complex, this being the case of the [Cu(en)2][Hg(SCN)4], the thiocyanates take up unsymmetrical positions satisfying the structural features of geometrical packing and charge neutralization. This may explain why these crystals occur in a system of lower symmetry.

Affiliated with

Also associated with

No associations

Rating

Crystal Structure of [Cu(en)2][Hg(SCN)4] does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Crystal Structure of [Cu(en)2][Hg(SCN)4], we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystal Structure of [Cu(en)2][Hg(SCN)4] will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1118273