%0 Journal Article
%A Hirsch, Keith A.
%A Wilson, Scott R.
%A Moore, Jeffrey S.
%D 1997
%T Coordination Networks of 3,3‘-Dicyanodiphenylacetylene and Silver(I) Salts: Structural
Diversity through Changes in Ligand Conformation and Counterion
%U https://acs.figshare.com/articles/journal_contribution/Coordination_Networks_of_3_3_-Dicyanodiphenylacetylene_and_Silver_I_Salts_Structural_Diversity_through_Changes_in_Ligand_Conformation_and_Counterion/3618462
%R 10.1021/ic970150j.s001
%2 https://acs.figshare.com/ndownloader/files/5707050
%K C 6 H 6
%K oxygen atoms
%K triflate ions
%K interpenetrated diamondoid network
%K sheet structure
%K transoid conformation
%K ligand nitrogen atom
%K CF
%K interpenetrated sheet structures
%K DCPA
%K Counterion Coordination networks
%K X F 6
%X Coordination networks of 3,3‘-dicyanodiphenylacetylene
(3,3‘-DCPA, 1) with silver(I) salts characterized by
single-crystal X-ray analysis are described. Network topology is found to
depend on both the counterion and solvent
employed during crystallization. The conformation adopted by the
ligand varies between planar cisoid and planar
transoid. With silver(I) triflate
(AgCF3SO3) in benzene, a sheet structure
of composition
[Ag(1)CF3SO3]C6H6
(2) forms in which silver(I) is five-coordinate and
bonds to two nitrogen atoms of distinct 3,3‘-DCPA
molecules,
another silver(I) ion, and two oxygen atoms of the triflate ions.
Changing the solvent to toluene produces an
undulating sheet structure of composition
[Ag2(1)(CF3SO3)2]
(3) in which silver(I) is six-coordinate, bonding
to
a ligand nitrogen atom, to four oxygen atoms of bridging triflate ions,
and to a neighboring silver(I) ion. In both
triflate structures, 3,3‘-DCPA adopts a transoid
conformation with respect to the positioning of the nitrile
groups.
With silver(I) hexafluorophosphate (AgPF6),
silver(I) hexafluoroarsenate (AgAsF6), or
silver(I) hexafluoroantimonate (AgSbF6), 2-fold interpenetrated sheet structures
[Ag(1)2]XF6
(X = P (4), As (5), or Sb
(6)) are obtained
in which 3,3‘-DCPA coordinates to tetrahedral silver(I) ions in a
cisoid conformation. In spite of the large
difference
in counterion size, minimal network deformation is observed among these
systems. Interestingly, with silver(I)
perchlorate hydrate (AgClO4·xH2O,
x ∼ 1), 3,3‘-DCPA coordinates in a transoid
conformation to tetrahedral
silver(I) ions to form the 8-fold interpenetrated diamondoid
network
[Ag(1)2]ClO4·H2O
(7). An analysis of the
packing of these networks is provided, and the results are compared to
complementary systems previously reported
from our study of coordination networks of dinitriles and
silver(I) salts.
%I ACS Publications