Synthesis and Derivatization of the Bis(amido)‐λ³‐cyclodiphosphazanes cis‐[R′(H)NP(μ‐NR)]₂, Including a Rare Example, trans‐[tBu(H)N(Se)P(μ‐NCy)]₂, Showing Intermolecular Se···H–O Hydrogen Bonding

Abstract

The reaction of PCl 3 with CyNH 2 in a 1:3 ratio afforded the dichloro-λ ] 2 (2), whereas the corresponding 1:5 reaction gave the bis(amido)-

Crystal structure and Hirshfeld surface analysis of the new cyclodiphosphazane [EtNP(S)NMe2]2

“…The P1-N1 distances in the ring [1.6856 (17) and 1.6719 (16) Å ] are longer than the P1-N2 distance [1.6325 (19) Å ], and the P1-S1 distance is 1.9291 (9) Å . These geometric parameters are in agreement with those observed in related non-cyclic and cyclic neutral ligands (Hill et al, 1994;Alouani et al, 2002;Peulecke et al, 2009;Chandrasekaran et al 2011).…”

“…With regard to the conformation of (I), its structure differs from that of P 2 S 2 N 5 C 9 H 27 (S-NIPA) (Benabicha et al 1986) primarily by the existence of the P 2 N 2 ring. The literature also shows several similar ligands, for example trans-[(EtNH)P(S)NEt] 2 (Hill et al 1994) and cis-P 2 S 2 N 4 C 20 H 42 (Chandrasekaran et al 2011). The most similar known ligand to (I) is the cyclic molecule trans-[(EtNH)P(S)NEt] 2 (Hill et al 1994).…”

“…Then, the reaction mixture was refluxed for 24 h. An oil was obtained after filtration of the pyridinium salt and evaporation of the heptane and the excess PCl 3 . This step corresponds to the formation of P 2 N 2 cycle, according to the bibliographic data (Chandrasekaran et al 2011;Hill et al 1994). All these operations were conducted under a nitrogen atmosphere to avoid hydrolysis of the chlorinated compounds.…”

Crystal structure of a palladium(II) complex containing the wide bite-angle bis(selenium) ligand, cis-[( t BuNH)(Se)P(μ-N t Bu)2P(Se)(NH t Bu)]

“…This conformational change upon coordination is possibly caused by the formation of intermolecular hydrogenbonding interactions. A similar conformational change influenced by hydrogen-bonding interactions has previously been noted (Chandrasekaran et al, 2011).…”

A new phosphorothioic triamide structure: P(S)[NHCH2C6H5]3

“…The references associated with the refcodes discussed in this article are as follows, in which the refcodes are arranged alphabetically: CAQWEY (Lö ble et al, 2012), ICEDEZ (Pinkas & Verkade, 1998), JAQMOE (Chandrasekhar & Azhakar, 2005), JEZXER and JEZWUG (Bent et al, 1990), KIVWES (Alouani et al, 2007), LEXXAN (Young et al, 1994), MSIHAZ (Engelhardt & Metter, 1980), NAHWUO (Rudd et al, 1996), OVUWIM (Chandrasekaran et al, 2011), TAJSOO (Balakrishna et al, 2010), TEPSAM (Subramanian & Trotter, 1969), TOKXIB (Gholivand et al, 2006) and VAGQOK (Tinant et al, 2002). The chemical structures of the refcodes discussed herein are given in Fig.…”