Metallophilic Mercuraazamacrocycles Derived from Bis{6‐formyl‐(2,3,4‐trimethoxy)phenyl}mercury: Reactivity with d¹⁰and d⁸Metal Ions

Abstract

A (2+2) Dipodal condensation of bis{6-formyl-(2,3,4trimethoxy

Luminescent AgI Complexes with 2,2′‐Bipyridine Derivatives Featuring [Ag‐(CF3)2Pyrazolate]4 Units

“…The H ( r ) value being –0.003 for complex 2 arises from a shared interaction [ H ( r ) <0]. At that for complex 3 the value of H ( r ) at Ag ··· Ag BCP is 0.000, which is typical for the closed‐shell metallophilic interactions . The presence of a shared interaction could be also suggested for complex 1a as its Ag ··· Ag distance (3.043 Å) is similar to that in 2 , while closed‐shell interaction is supposed for 1b featuring relatively long Ag ··· Ag distance 3.239 Å as compared to 3.172 Å in 3 .…”

Dinuclear Silver(I) Nitrate Complexes with Bridging Bisphosphinomethanes: Argentophilicity and Luminescence

“…Moreover, the coordination of pyrazole led to the elongation of the Ag-Ag distance to 3.218 Å, which was significantly longer than that for [Ag(dppm)]2(NO3)2 (3.090-3.110 Å) [7,32]. The Ag-Ag distance was in the range of closed-shell metallophilic interactions [27]. Silver atoms as well as CH2 fragments, were located on both sides of the P4 plane lying out at 0.594 and 0.720 Å, respectively, which determines the chair-configuration of the central M2P4 core.…”

“…1.02 1Colorless crystals of complex 1 was obtained by slow evaporation of their DCM/hexane (v/v = 2:1) solutions at ca. 5 • C. Complex 1 features a chair form of the eight-member cyclic [AgPCP] 2 core ( Figure 1), in which silver atom is coordinated to four atoms (two P dppm (2.396 2 Ag-Ag bond length (2.9812(7) Å) was in the range of shared argentophilic interactions [27][28][29] being non-significantly longer than that present in the literature (av. 2.93 Å).…”

Hybrid Quinoline Telluroether Ligand Derived Copper and Silver Complexes: Synthesis, Structural and Electronic Properties

“…[30][31][32] Additionallywe have reported mercury-chalcogen substituted macrocyclic ligands and prepared copper and palladium bimetallic complexes to investigate the Hg•••M (M=Cu, Ag, Au, Pd and Pt) interactions. [33][34][35][36][37] Here, in search of a stable organotelluroether ligand and its bimetallic complexes with potential metal•••metal interactions, we have designed quinolinyl based tetratendate hybrid telluroether ligand of type, ArÀ TeÀ CH 2 À TeÀ Ar, and explored its complexation properties with Cu(II) and Ag(I) salts. It is interesting to observe that the metal ions have bridged the ligand to form a self-assembled eight membered metallamacrocycles Further, the bonding properties were studied by DFT computation.…”

“…Similarly, acyclic telluroethers IV , V also underwent C−Te bond cleavage upon reaction with Hg(II) and Pd(II) metal salts, whereas the diazene telluroether VI afforded a cleaved product VII [30–32] . Additionallywe have reported mercury‐chalcogen substituted macrocyclic ligands and prepared copper and palladium bimetallic complexes to investigate the Hg⋅⋅⋅M (M=Cu, Ag, Au, Pd and Pt) interactions [33–37] …”