title: Unsymmetrical Ni(II)-imidoylamidine complexes derived from a novel oxime-mediated single-pot reaction of nitriles.
abstract: The neutral bisimidoylamidine (or 1,3,5-triazapentadiene) Ni(II) complexes [Ni{HN=C(R)N=C(C(6)H(4)CO)N}(2)] {R=Me, Et, nPr, iPr, (CH(2))(3)Cl}, bearing an iminoisoindolinone moiety, have been generated by a novel 2-propanone oxime-mediated single-pot reaction of phthalonitrile and nickel(II) acetate in solution of the corresponding alkylnitrile (RCN). Single-crystal X-ray diffraction analyses indicate a square-planar geometry of the imidoylamidine core. The synthesised compounds represent rare specimens of genuine unsymmetrical imidoylamidine complexes as well as their first examples generated from nitriles in a single-pot reaction.
authors.affiliation: Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
authors.forename: Maximilian N
authors.initials: MN
authors.lastname: Kopylovich
authors.forename: Matti
authors.initials: M
authors.lastname: Haukka
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Kirillov
authors.forename: Vadim Yu
authors.initials: VY
authors.lastname: Kukushkin
authors.forename: Armando J L
authors.initials: AJ
authors.lastname: Pombeiro
mesh_terms: D000578:Amidines / Q000138:chemical synthesis* / Q000737:chemistry; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010091:Oximes / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D000578:Amidines; D009570:Nitriles; D009942:Organometallic Compounds; D010091:Oximes; D009532:Nickel