RT Journal Article
T1 Silver(I) Octanuclear Complexes Containing N′-(4-Oxotiazolidin-2-Iliden)picolinohydrazonamide and Nitrate as Bridge Ligands. An Example of Solvatomorphism?
A1 García Santos, María Isabel
A1 Krümpelmann, Julia
A1 Saa Iglesias, Manuel
A1 Burguera Piña, Sergi
A1 Frontera Beccaria, Antonio
A1 Castiñeiras Campos, Alfonso
K1 Anions
K1 Cations
K1 Ions
K1 Ligands
K1 Molecules
AB The versatile coordination chemistry of (2Z,N’E)-N′-(4-oxothiazolidin-2-ylidene)picolinohydrazonamide (HAmDHotaz) facilitated the synthesis of new complexes with different silver(I) salts. This paper describes the synthesis and characterization, through elemental analysis and spectroscopic techniques (when solubility permits), of a series of compounds that illustrate the coordinative and structural diversity achievable with the HAmDHotaz ligand. Five silver clusters containing the [Ag8(AmDHotaz)4]4+ nucleus were structurally analyzed by single-crystal X-ray diffraction and were found to exhibit solvomorphism. The compositions of these are [Ag8(AmDHotaz)4(NO3)3(MeOH)(H2O)](NO3)·MeOH·7.5H2O (1), {[Ag8(AmDHotaz)4(NO3)3(H2O)2](NO3)·9.5(H2O)}n (2), {[Ag8(AmDHotaz)4(NO3)3(H2O)2](NO3)·11.5(H2O)}n (2a), {[Ag8(AmDHotaz)4(NO3)2(H2O)2](NO3)(OH)·6H2O}n (3), and {[Ag8(AmDHotaz)4(NO3)2(H2O)](NO3)(OH)·4.5H2O}n (3a). Argentophilic interactions are present in each of the octanuclear structures, where Ag···Ag distances range from 2.828(2) to 2.986(1) Å. These distances are influenced by crystal packing, determined by the counterion and solvent molecules in the structure. In the solvatomorphs, solvent molecules were observed to be disordered. Various hydrogen-bonding interactions, such as N–H···O–N, O–H···O, N–H···O═C, C–H···O–N, and π–π stacking interactions, contribute to the crystal packing. The influence of these weak interactions on the crystal packing was further analyzed using DFT calculations and Bader’s theory of atoms-in-molecules, with a focus on argentophilic interactions and Ag···S interactions
PB ACS
SN 0020-1669
YR 2024
FD 2024-05-07
LK http://hdl.handle.net/10347/34874
UL http://hdl.handle.net/10347/34874
LA eng
NO Inorg. Chem. 2024, 63, 20, 9221–9236
NO The authors thank the financial support received from Consellería de Cultura, Educación, Formación Profesional e Universidades, Xunta de Galicia (Spain). GPC GI-2197 (ED481B-2022-068 2023/19)
DS Minerva
RD 24 abr 2026