Synthesis and Characterization of Carbonyl Group‐6‐Metal Derivatives with LigandN,N‐Bis(diphenylphosphino)naphthalen‐1‐amine (=N‐(Diphenylphosphino)‐N‐naphthalen‐1‐yl‐P,P‐diphenylphosphinous Amide). Molecular Structure ofcis‐Tetracarbonyl[N‐(diphenylphosphino‐κP)‐N‐naphthalen‐1‐yl‐P,P‐diphenylphosphinous amide‐κP]molybdenum (cis‐[Mo(CO)₄{C₁₀H₇‐1‐N(PPh₂)₂}]

Abstract

The reaction of N,N‐bis(diphenylphosphino)naphthalen‐1‐amine (1) with [M(CO)6] (M=Cr, Mo, W; 1 : 1 molar ratio) afforded cis‐[M(CO)4(1)] 2 (M=Cr), 3 (M=Mo), and 4 (M=W). Compounds 2–4 were identified and characterized by elemental analysis and multinuclear NMR (1H‐, 13C‐, and 31P‐NMR) and IR spectroscopy. A crystal‐structure determination of complex 3 was carried out.

Synthesis and Spectroscopic Properties of PdII and PtII Complexes with Monosulfide and Monoselenide Bis(phosphanyl)amine Ligands

“…Thus, an increase in the coupling constant is indicative of increasing s ‐character of the phosphorus lone‐pair and points to lower basicity 16. The 1 J (P V , 77 Se) is in agreement with values previously reported for similar selenides16–19 and higher than those described for the corresponding diarylphosphines 16. This is indicative of the lower basicity associated with the phosphine moiety, which is due to the higher electronegativity of the directly attached nitrogen atom.…”

“…Solvents were dried and freshly distilled in a nitrogen atmosphere 28 . N , N ‐bis(diphenylphosphanyl)‐naphthalen‐1‐amine ( 1 ) was prepared according to our previous procedure 19. The chemicals [PdCl 2 (cod)], [PtCl 2 (cod)] (cod = /cycloocta‐1,5‐diene), and NiCl 2 (PPh 3 ) 2 were purchased from Sigma‐Aldrich and used as received.…”

Tetracarbonyl-2κ4C-[μ-5-methyl-1,1,3-triphenyl-2-(propan-2-yl)-2,4-diaza-1,3-diphosphahexan-4-ido-1κN4:2κP1,P3](N,N,N′,N′-tetramethylethane-1,2-diamine-1κ2N,N′)lithiummolybdenum

“…1)exhibits a distorted octahedral geometry and is ligated by four carbonyl groups and the P,P 0 -cis-chelating PNPN fragment, which forms a nearly planar four-membered Mo/P/N/P metallacycle. The P-Mo-P bite angle is 65.714 (11) , similar to those in comparable [Mo(CO) 4 {Ar 2 PN(R)PAr 2 }] complexes [range from 64.9 (1) to 66.14 (3) ; Al- Masri et al, 2013;Biricik et al, 2003;Gaw et al, 2000Gaw et al, , 2002Majoumo et al, 2004].The P1-N1-P2 angle is 105.41 (6) , which is slightly larger than that in the protonated complex [103.06 (7) ] prepared by Hö hne et al (2018). Nevertheless, it is obviously larger than in the uncoordinated [Ph 2 PN( i Pr)P(Ph)N( i Pr)][Li(tmeda)]…”

Synthesis, X‐ray Structures, and Photoluminescence of the Octahedral Cu4I4 Cluster with Bulky Bidentate Bis(phosphanyl)amine Ligand

“…The maximum Cu I –Cu I distance for which the 3 CC transition in octahedral clusters was observed as 2.5760(8) Å and described an analogous non‐luminescent complex with a 2.6406(11) Å Cu I –Cu I distance was also reported . In an extension of our interest and the interest of others on the synthesis and solid‐state structures of phosphorus(III) ligands containing direct P–N bonds and their derivatives and to provide a significantly enhanced understanding of the role of ligands in the luminescence of the copper cluster family, we herein report the synthesis and photophysical properties of a Cu 4 I 4 octahedral cluster containing the bis(aminophosphine) ligand 1 .…”