%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 [Re63-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 [Re63-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, [Re63-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