Silver–iodocarbon complexes: crystal structures of eight compounds obtained from the reactions of AgPF₆or AgNO₃with CH₂I₂, I(CH₂)₃I and simple aryl iodides

η3-, η4- and η6-Co-ordination complexes of the weakly co-ordinating anion tetrakis[3,5-bis(trifluoromethyl)phenyl]borate

“…The final weighting scheme was w ] n . 7 In the 2,2Јbipyridine complex 2 the TFPB ligand exhibits a less symmetrical η 3 -bonding mode comprized of an η 2 -interaction with an ipso and ortho carbon atom at one aromatic ring together with a weaker η 1 -interaction with the ipso carbon of a second aromatic ring. The Ag᎐C bond distances for the η 2 -interaction in 2 [2.424(3) and 2.493(3) Å] are significantly shorter than the corresponding distances in 1 [2.507(3)-2.686(3) Å].…”

A Speculative Discussion of the Structural Details of 1-Bromo-2-iodo-benzenes

“…The molecular geometries were expected to give an indication of the relative importance of attractive and repulsive effects between two different large halogen atoms (Br and I) which are held in close proximity. A literature search has shown that a 1-bromo-2-iodo-benzene molecule has been structurally characterized only in one case, where the molecule functions as a ligand to silver(I) cations [17]. In this complex the iodine atoms are the donor sites for the metal cation, which may alter the bonding situation.…”

A two-dimensional silver–iodide organic network constructed from a unique [Ag6I6] hexagonal prism-based one-dimensional column motif

“…Atom Ag1 is in a distorted tetrahedral environment defined by three iodide anions and one N atom from a bmimp ligand, while atom Ag2 displays a tetrahedral AgI 4 geometry. The Ag-N and average Ag-I bond lengths are 2.228 (8) and 2.8608 (16) Å , respectively, which are in the normal ranges observed in related Ag I -iodide compounds (Ansell, 1976;Powell et al, 1996). The distortion of the tetrahedron can be indicated by the value of the 4 parameter (Yang et al, 2007) which describes the geometry of a four-coordinate metal system; in (I), 4 = 0.88 and 0.96 for atoms Ag1 and Ag2, respectively (cf 4 = 1 for a perfect tetrahedral geometry).…”