Abstract:Abstract. (AgCIP2C29H30)2 , monoclinic, P21~n, a= 13.428 (1), b=33.263 (4), c=12.414 (1) A, fl= 99"30(1) ° , V=5472 ]k 3, Z=4, Dc=1.43, Do=1.45 g cm -3. Two Ag atoms are joined both by doubly bridging CI atoms and by two molecules of 1,5-bis(diphenylphosphine)pentane. Each Ag is thus coordinated to two CI and two P atoms, the latter belonging to different ligand molecules. The coordination round the Ag and P atoms is distorted tetrahedral.
“…The Ag-P distances [2.467 (2) and 2.472 (2) A] are also in good agreement with values found in similar compounds containing two P atoms (Aurivillius, Cassel & F/ilth, 1974;Cassel, 1975Cassel, , 1976Teo & Calabrese, 1976). In the latter, [AgBr(Ca6H30P2)]2 .CHC13, 'AgBrP2', one Ag-P distance is somewhat elongated [2.513 (7) /k] compared with those in 'AgCIP2'.…”
Section: Introduction Prismatic Crystals Of the Title Compoundsupporting
confidence: 74%
“…Angles in the distorted tetrahedra around the Ag and P atoms P(1)-Ag-P(2) 122.91 (7) P(2)-Ag-Cl 113.92 (7) P(I)-Ag-CI' 103.59 (7) P(2)--Ag-Cl' 108.70 (7) P(1)-Ag-CI 112.97 (7) CI--Ag-Cl' 88.03 (6) Ag- similar dimeric molecules (Aurivillius, Cassel & F~ilth, 1974;Cassel, 1976). The Ag-P distances [2.467 (2) and 2.472 (2) A] are also in good agreement with values found in similar compounds containing two P atoms (Aurivillius, Cassel & F/ilth, 1974;Cassel, 1975Cassel, , 1976Teo & Calabrese, 1976).…”
Section: Introduction Prismatic Crystals Of the Title Compoundmentioning
To each Ag are also coordinated two P atoms from two triphenylphosphine molecules. The coordination polyhedron around Ag is a distorted tetrahedron. The crystal structure is thus built up from discrete dimeric molecules.
“…The Ag-P distances [2.467 (2) and 2.472 (2) A] are also in good agreement with values found in similar compounds containing two P atoms (Aurivillius, Cassel & F/ilth, 1974;Cassel, 1975Cassel, , 1976Teo & Calabrese, 1976). In the latter, [AgBr(Ca6H30P2)]2 .CHC13, 'AgBrP2', one Ag-P distance is somewhat elongated [2.513 (7) /k] compared with those in 'AgCIP2'.…”
Section: Introduction Prismatic Crystals Of the Title Compoundsupporting
confidence: 74%
“…Angles in the distorted tetrahedra around the Ag and P atoms P(1)-Ag-P(2) 122.91 (7) P(2)-Ag-Cl 113.92 (7) P(I)-Ag-CI' 103.59 (7) P(2)--Ag-Cl' 108.70 (7) P(1)-Ag-CI 112.97 (7) CI--Ag-Cl' 88.03 (6) Ag- similar dimeric molecules (Aurivillius, Cassel & F~ilth, 1974;Cassel, 1976). The Ag-P distances [2.467 (2) and 2.472 (2) A] are also in good agreement with values found in similar compounds containing two P atoms (Aurivillius, Cassel & F/ilth, 1974;Cassel, 1975Cassel, , 1976Teo & Calabrese, 1976).…”
Section: Introduction Prismatic Crystals Of the Title Compoundmentioning
To each Ag are also coordinated two P atoms from two triphenylphosphine molecules. The coordination polyhedron around Ag is a distorted tetrahedron. The crystal structure is thus built up from discrete dimeric molecules.
“…The chlorido‐bridged Ag 2 Cl 2 moiety forms an almost perfect square as shown by Ag–Cl bond lengths of 271.1(2) and 270.9(2) pm and a Cl1–Ag1–Cl1' bond angle of 90.00(5)°. A similar structure was reported for the 2:2 complexes of 1,5‐bis(diphenylphosphanyl)pentane (dpppn) with AgX (X = Br, I) by Effendy et al and with AgCl by Cassel . The Ag–P bond lengths in the dpppn complexes are about 2–4 pm longer than in complex 2 , which is to be expected given the electron‐withdrawing effect of the phenyl groups of the triphenylphosphine.…”
In a 2:2 reaction with silver(I) chloride or bromide, 1,5‐bis(1‐phospholano)pentane (1a) afforded frame‐like macrocyclic structures, with intra‐ (2, Cl) or intermolecular (3, Br) halido bridges. In contrast, 1,7‐bis(1‐phospholano)heptane (1b) formed coordination polymers 4a (Cl) and 4b (Br) with bridging bis‐phospholane and halido ligands. A unique paddle wheel‐type metallacryptand structure 5 was obtained from 1a and silver(I) bromide in a 2:3 reaction (M:L). All complexes were fully characterized by NMR, IR spectroscopy, mass spectrometry, and X‐ray crystallography.
“…It also reports two one-dimensional polymers that demonstrate the versatility of the combination of silver(I) and diphosphine units in forming different types of coordination polymer. Previous related work on silver(I) coordination polymers has concentrated on the use of nitrogen-donor ligands, but the use of phosphine ligands either alone or in combination with oxygen- and nitrogen-donor ligands has much promise in the synthesis of robust polymers and networks. − Silver(I) complexes have potential as emissive or medicinally active materials. , In some cases, the polymers reported here may be considered to be formed by ring-opening polymerization of cyclic precursors. 1 The Honeycomb and Puckered Network Structures…”
The syntheses and structures of polymeric silver(I)-diphosphine complexes are reported, in which the silver(I) center is surrounded by 1, 2, or 3 phosphorus atoms. When rigid diphosphine ligands are used in combination with weakly coordinating anions, linear polymers are obtained that contain both diphosphine and anion bridges. However, with excess of a diphosphine with a long, flexible, spacer group, a remarkable puckered sheet structure, comprised of fused giant 54-membered rings, is obtained that is a coordination polymer analogue of laminated materials such as micas and clays. The polymeric chain and sheet structures may be considered to be formed by ring-opening polymerization of cyclic precursors.
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