Abstract
The synthesis and characterization of Cd2+, Ag+, and Hg2+ complexes with deprotonated tolbutamide and chlorpropanude hgands is described. The crystal and molecular structures of Hg(CH3C6H4SO2NCONH-n-Bu)2 (I) and K[Cd(ClC6H4SO2NCONH-n-Pr)3] (III) are reported. In I the coordination environment around the Hg2+ atom is strictly linear and the sulfonylurea ligand is bound in a predominantly monodentate fashion. The tolbutamide ligand is bound through the deprotonated sulfamido nitrogen atom. The Hg-N distance is 2.052 (17) Å. By comparison the chlorpropamide ligand is coordinated to a Cd2+ atom in a bidentate mode with both the sulfamido nitrogen and the carbonyl oxygen atoms bound to the metal center. The coordination environment around the Cd2+ atom can be best described as trigonal prismatic. The mean Cd-N and Cd-O distances are 2.212 (20) and 2.535 (24) Å, respectively. The counterion K+ slightly interacts with the oxygen of the carbonyl and sulfonyl groups in the anion in such a way as to form a polymeric zigzag K⋯Cd chain parallel to the a axis. The IR spectra show (C..-O) and (C..-N) stretching frequencies characteristic for either mode of sulfonylurea ligand coordination. On the basis of the IR spectra we propose a structure for K[Ag(p-XC6H4SO2NCONHR)2] (tolbutamide, X = CH3 and R = n-Bu; chlorpropamide, X = Cl and R = n-Pr) similar to that of the Hg2+ complexes. The 1H NMR spectra of these compounds are also reported.
| Original language | English |
|---|---|
| Pages (from-to) | 1395-1402 |
| Number of pages | 8 |
| Journal | Inorganic Chemistry |
| Volume | 26 |
| Issue number | 9 |
| Publication status | Published - 1987 |
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Synthesis and characterization of sulfonylurea complexes with Cd2+, Hg2+, and Ag+. crystal and molecular structures of K[Cd(chlorpropamide)3] and Hg(tolbutamide)2. / Kessissoglou, D. P.; Manoussakis, G. E.; Hatzidimitriou, A. G.; Kanatzidis, Mercouri G.
In: Inorganic Chemistry, Vol. 26, No. 9, 1987, p. 1395-1402.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Synthesis and characterization of sulfonylurea complexes with Cd2+, Hg2+, and Ag+. crystal and molecular structures of K[Cd(chlorpropamide)3] and Hg(tolbutamide)2
AU - Kessissoglou, D. P.
AU - Manoussakis, G. E.
AU - Hatzidimitriou, A. G.
AU - Kanatzidis, Mercouri G
PY - 1987
Y1 - 1987
N2 - The synthesis and characterization of Cd2+, Ag+, and Hg2+ complexes with deprotonated tolbutamide and chlorpropanude hgands is described. The crystal and molecular structures of Hg(CH3C6H4SO2NCONH-n-Bu)2 (I) and K[Cd(ClC6H4SO2NCONH-n-Pr)3] (III) are reported. In I the coordination environment around the Hg2+ atom is strictly linear and the sulfonylurea ligand is bound in a predominantly monodentate fashion. The tolbutamide ligand is bound through the deprotonated sulfamido nitrogen atom. The Hg-N distance is 2.052 (17) Å. By comparison the chlorpropamide ligand is coordinated to a Cd2+ atom in a bidentate mode with both the sulfamido nitrogen and the carbonyl oxygen atoms bound to the metal center. The coordination environment around the Cd2+ atom can be best described as trigonal prismatic. The mean Cd-N and Cd-O distances are 2.212 (20) and 2.535 (24) Å, respectively. The counterion K+ slightly interacts with the oxygen of the carbonyl and sulfonyl groups in the anion in such a way as to form a polymeric zigzag K⋯Cd chain parallel to the a axis. The IR spectra show (C..-O) and (C..-N) stretching frequencies characteristic for either mode of sulfonylurea ligand coordination. On the basis of the IR spectra we propose a structure for K[Ag(p-XC6H4SO2NCONHR)2] (tolbutamide, X = CH3 and R = n-Bu; chlorpropamide, X = Cl and R = n-Pr) similar to that of the Hg2+ complexes. The 1H NMR spectra of these compounds are also reported.
AB - The synthesis and characterization of Cd2+, Ag+, and Hg2+ complexes with deprotonated tolbutamide and chlorpropanude hgands is described. The crystal and molecular structures of Hg(CH3C6H4SO2NCONH-n-Bu)2 (I) and K[Cd(ClC6H4SO2NCONH-n-Pr)3] (III) are reported. In I the coordination environment around the Hg2+ atom is strictly linear and the sulfonylurea ligand is bound in a predominantly monodentate fashion. The tolbutamide ligand is bound through the deprotonated sulfamido nitrogen atom. The Hg-N distance is 2.052 (17) Å. By comparison the chlorpropamide ligand is coordinated to a Cd2+ atom in a bidentate mode with both the sulfamido nitrogen and the carbonyl oxygen atoms bound to the metal center. The coordination environment around the Cd2+ atom can be best described as trigonal prismatic. The mean Cd-N and Cd-O distances are 2.212 (20) and 2.535 (24) Å, respectively. The counterion K+ slightly interacts with the oxygen of the carbonyl and sulfonyl groups in the anion in such a way as to form a polymeric zigzag K⋯Cd chain parallel to the a axis. The IR spectra show (C..-O) and (C..-N) stretching frequencies characteristic for either mode of sulfonylurea ligand coordination. On the basis of the IR spectra we propose a structure for K[Ag(p-XC6H4SO2NCONHR)2] (tolbutamide, X = CH3 and R = n-Bu; chlorpropamide, X = Cl and R = n-Pr) similar to that of the Hg2+ complexes. The 1H NMR spectra of these compounds are also reported.
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M3 - Article
VL - 26
SP - 1395
EP - 1402
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 9
ER -