Alternating-current conductivity and dielectric relaxation of bulk iodoargentate

Facile syntheses, structures and photocatalytic properties of 3D iodoargentate frameworks derived from TM-flexible-amino-ligand templates

“…As a result, edge-sharing and face-sharing connections between AgI 4 units are observed in the 0D Ag 4 I 8 cluster. 1D infinite linear [Ag 2 I 4 ] n chains were obtained in the iodoargentate hybrids [(C 22 H 50 N 2 )(Ag 2 I 4 )] n ([C 22 H 50 N 2 ] = N , N ′-1,2-ethylence-bis( N , N ′-dimethyl octane ammonium)), [(Hpyz) 2 (Ag 2 I 4 )] n · n H 2 O (Hpyzt = monoprotonated pyrazinium), [(MIPDz) 2 (Ag 2 I 4 )] n (MIPDz = methylimidazopyridazinium), and [(Cu(en) 2 )(Ag 2 I 4 )] n (en = ethylenediamine), 16–19 in which the organic cation or [Cu(en) 2 ] 2+ complex cation acts as the counterion of the [Ag 2 I 4 ] n 2 n − chain. The [Ag 2 I 4 ] n 2 n − chains are all composed of AgI 4 units generated through edge sharing.…”

“…A large number of iodoargentate hybrids have been prepared using organic cations, and transition metal (TM) and lanthanide (Ln) metal complex cations as counter cations or structural directing agents. Various iodoargentate aggregates with different compositions and structures were obtained in these iodoargentate hybrids, including 0D clusters [Ag 2 I 4 ] 2− , 11,12 [Ag 2 I 6 ] 4− , 13 [Ag 4 I 8 ] 4− , 14 and [Ag 4 I 12 ] 8− , 15 1D chains [Ag 2 I 4 ] 2− , 16–19 [Ag 3 I 5 ] 2− , 20–22 [Ag 4 I 6 ] 2− , 23 [Ag 5 I 7 ] 2− , 24,25 [Ag 6 I 9 ] 3− , 26,27 [Ag 9 I 12 ] 3− , 28 [Ag 10 I 12 ] 2− , 25,29 and [Ag 12 I 18 ] 6− , 30 and 2D layers [Ag 2 I 3 ] − , [Ag 6 I 8 ] 2− , 21 [Ag 5 I 8 ] 3− , [Ag 6 I 9 ] 3− , [Ag 7 I 10 ] 3− , 31,32 [Ag 3 I 6 ] 3− , [Ag 6 I 11 ] 5− , 33 and [Ag 11 I 15 ] 4− . 20 Comparatively, the 3D frameworks of iodoargentates were seldom reported, giving fewer examples: [Ag 2 I 4 ] 2− , 34,35 [Ag 5 I 7 ] 2− , 36 [Ag 9 I 13 ] 4− , 37 [Ag 13 I 17 ] 4− , 20 and [Ag 14 I 16 ] 2− .…”

Optical, UV-Vis spectroscopy studies, electrical and dielectric properties of transition metal-based of the novel organic–inorganic hybrid (C6H10N2)(Hg2Cl5)2.3H2O

“…18 To give more information on crystal dynamics, impedance spectroscopy is a very useful technique in solid-state because it is one of the methods that is able to give valuable information about conduction mechanism and to understand the nature and the origin of dielectric losses. 33,34 Inspired by these pioneering works, we wish to study the optical properties of (C 6 H 10 N 2 )(Hg 2 Cl 5 Þ 2 .3H 2 O. The structural arrangement of this compound can be described as cationic layer alternate with anionic layer stacked along c-direction.…”