%0 Generic
%A Selby, Hugh D.
%A Roland, Bryan K.
%A Carducci, Michael D.
%A Zheng, Zhiping
%D 2003
%T Hydrogen-Bonded Extended Arrays of the [Re6(μ3-Se)8]2+
Core-Containing Clusters
%U https://acs.figshare.com/articles/dataset/Hydrogen-Bonded_Extended_Arrays_of_the_Re_sub_6_sub_sub_3_sub_-Se_sub_8_sub_sup_2_sup_Core-Containing_Clusters/3610746
%R 10.1021/ic0261326.s004
%2 https://acs.figshare.com/ndownloader/files/5699301
%K Re
%K crystal engineering motif
%K 31 P NMR
%K compound
%K tran
%K ligand substitution reaction
%K ci
%K PEt 3
%K Se
%K amide
%K isonicotinamide
%K cluster
%K stereochemistry
%X Site-differentiated solvated clusters of the general formula [Re6(μ3-Se)8(PEt3)n(MeCN)6-n](SbF6)2 (n = 4, cis and
trans; n = 5) undergo ligand substitution reaction with isonicotinamide to afford the corresponding amide derivatives,
[Re6(μ3-Se)8(PEt3)n(isonicotinamide)6-n]2+ [1 (n = 5); 2 (n = 4, trans); 3 (n = 4, cis)]. Retention of stereochemistry
in each case was confirmed by 1H and 31P NMR. The solid-state structures of all three compounds were established
crystallographically, which revealed self-complementary hydrogen-bonding interactions between adjacent cluster
units. While complex 1 exists as hydrogen-bonded dimers in the solid state, compounds 2 and 3 form one-dimensional
chains of clusters bridged by paired hydrogen bonds. It is the rigid stereochemistry of the cluster, combined with
the classic crystal engineering motif of complementary N−H···O amide hydrogen bonding, that affords the predictable
solid-state structures and dimensionality.
%I ACS Publications