Metal ion-aromatic complexes. XVIII. Preparation and molecular structure of naphthalenetetrakis(silver perchlorate) tetrahydrate

Abstract

Naphthalene-tetrakis(si1ver perchlorate) tetrahydrate, CloH&4gC10&.4HzO, has been prepared and its crystal structure determined by three-dimensional X-ray diffraction techniques from 1796 reflections measured with an automatic diffractometer at ambient room temperature. The cfystals are triclinicoPi, Z = 1, P&d 2.81 g cm-*, Pobsd = 2.8 g cm-*, with reduced cell constants a = 7.298 (1) A, b = 11.870 (1) 3, c = 7.166 (1) 4, a = 91.86 (l)', , P = 100.53 (l)', and y = 102.38 (1)'. The A-centered cell, a = 11.870 (1) A, b = 9.247 (1) A, c = 11.123 (1) A, cy = 88.93 (l)', 0 = 96.88 (l)", and y = 101.21 (l)", was used for the structure solution and refinement by full-matrix least squares including anisotropic temperature factors for all nonhydrogen atoms to a final R of (13) (a)

Efficient loading of silver nanoparticles on graphene oxide and its antibacterial properties

“…The [Ag(NH 3 ) 2 ] + might intercalate into the graphene layers and be absorbed on the nanosheets tightly, and silver iodide precipitation was hardly observed in a few minutes after adding iodide ions on the condition that the initial weight ratio of AgNO 3 to GO was no more than 2:1 (figure S1 is available online at stacks.iop.org/ NANOX/1/010041/mmedia). The main forces between [Ag(NH 3 ) 2 ] + and GO may be π type silver ionaromatic [24][25][26], and silver ion-oxygen [27] interaction, since part of the π electrons in polyaromatic structure and hydroxyl enter into the empty electron orbits of the silver ions. In addition, electrostatic interaction between carboxyl anion of GO and the [Ag(NH 3 ) 2 ] + may be another force to absorb the [Ag(NH 3 ) 2 ] + on the edges of the GO sheets.…”

“…GO contains polyaromatic structure and a variety of oxygen functional groups as hydroxyl, carbonyl, and carboxyl in alkaline condition. The carboxyl anion may not only absorb silver ions by electrostatic interaction, but also make the GO sheets further apart by charge repulsion, which allows the silver ions to enter and attach to the nanosheets of GO by π-type silver ion-aromatic [24][25][26], silver ion-oxygen [27] interaction. Thus GO might be an excellent dispersant for silver ions.…”

The effect of thermolysis temperatures of two silver(I) supramolecular polymers on the formation of silver nanostructures

“…Intermolecular hydrogen bonding as well as ionic or dipolar interactions has been the most widely employed 'directional forces' in this context [6][7][8]. Among polymeric coinage d 10 metal complexes, silver(I) supramolecular polymers have received much attention because silver(I) shows a tendency to form coordination polymers with unique Ag···C [9][10][11][12][13][14][15][16][17][18], Ag···Ag [17,19] and agostic (Ag···H-C) [20][21][22] interactions. On the other hand, metallic silver has been extensively used in a variety of applications such as catalysis, electronics, photonics, photography, biology and medicinal science due to its unique properties.…”

Preparation of Cadmium(II) Oxide Nanoparticles from a New One-Dimensional Cadmium(II) Coordination Polymer Precursor; Spectroscopic and Thermal Analysis Studies

“…They are also used in several applications as sensors, organic light emitting diodes, and full-colored LCD displays [7][8][9][10][11]. Cd 2?…”