Reaktionen von 1,3‐Diphenyltriazenid mit Cu⁺ und Tl⁺

Abstract

1,3-Diphenyltriazene (1) was treated with sodium in ethanol to obtain the salt Na(1,3-Ph 2 N 3 ) (2). Compound 2 reacts with 15crown-5 in EtOH to the crown ether complex [Na(15-crown-5)(1,3-Ph 2 N 3 )]·0.5EtOH (3·0.5EtOH). In addition 2 was added to ethanol solutions of Cu I and Tl I salts to yield the multinuclear complexes

A Flexible, Extremely Sterically Demanding Triazenide Ligand: Synthesis and Coordination Chemistry

“…This contrasts with complex 12, whereby the potassium is localized in the plane of the triazenide chelate. Similar solid-state coordination behavior has been observed before in dimeric thallium(I) triazenides; [21,64,65] it is likely in this instance that the steric demand of the N 3 Dipp* 2 ligand frustrates any dimerization. For both ARTICLE disordered components, the coordination follows a similar pattern to that observed for the potassium congener; namely a chelating N-N-N moiety as well as three arene-π···Tl interactions to the flanking arenes.…”

A new tetranuclear copper(I) complex based on allyl(5-phenyl-1,3,4-thiadiazol-2-yl)azanide ligand: Synthesis and structural characterization

“…2). The last distance value is within the sum of the Van der Waals radii generally accepted for copper (r vdW (Cu) 1.4 Å) [37] and is quite comparable with Cu(I)Á Á ÁCu(I) distance range 2.71-2.75 Å in copper(I) benzoate [6], and is slightly elongated in comparison with corresponding contacts 2.58 and 2.60 Å in [Cu 4 (1,3-Ph 2 N 3 ) 4 ] (1,3-Ph 2 N 3 -1,3-diphenyltriazenide) [14] or 2.64 Å in [Cu(HNPEt 3 )] 4 (CF 3 SO 3 ) 4 [38]. It is worth noting that all Cu(I)Á Á ÁCu(I) distances mentioned above are much smaller than the sum (4.76 Å) of r vdW (Cu) (2.38 Å) resulted from the nearest widely analyzed distribution map for intermolecular contacts between the copper and the oxygen [39].…”

“…Moreover, taking into account a small number of structurally characterized complexes with tetranuclear Cu(I) core of interacted Cu(I)Á Á ÁCu(I) metal atoms, study in this area, in particular with nitrogen containing ions, seems to be rather prospective. In the case of triazenide ligands the {Cu(I)} 4 fragment was observed previously only in a few corresponding complex structures [14][15][16][17][18], whereas similar Cu(I) compounds with azanide ions have not been structurally studied earlier.…”

Supramolecular Similarity in Polymorphs: Use of Similarity Indices (IX)

“…The 1IA form has already been reported, 24 but there are several “A” alerts in its checkCIF report. The 1IIA form has no viable structure deposited in the CCDC database.…”