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Complex formation of copper(II), nickel(II) and zinc(II) with ethyl phosphonohydroxamic acid : solution speciation, synthesis and structural characterization
Ostrowska, Malgorzata; Golenya, Irina A.; Haukka, Matti; Fritsky, Igor O.; Gumienna-Kontecka, Elzbieta (Royal Society of Chemistry, 2019)The first example of a Cu(II) 12-MC-4 hydroxamic metallacrown containing an ethylphosphonate group as an additional donor function in the β-position with respect to the hydroxamic group is described. The solution equilibrium ... -
Synthesis, X-ray structures and redox behaviour of the group 14 bis-boraamidinates M[PhB(μ-N-t-Bu)2]2 (M = Ge, Sn) and Li2M[PhB(μ-N-t-Bu)2]2 (M = Sn, Pb)
Konu, Jari; Tuononen, Heikki; Chivers, Tristram (NRC Research Press, 2009)The solid-state structures of the complexes M[PhB(μ-N-t-Bu)2]2 (1a, M= Ge; 1b, M = Sn) were determined to be spirocyclic with two orthogonal boraamidinate (bam) ligands N,N′-chelated to the group 14 centre. Oxidation of ... -
Synthesis, Reactivity, and Computational Analysis of Halophosphines Supported by Dianionic Guanidinate Ligands
Brazeau, Allison; Hänninen, Mikko M.; Tuononen, Heikki; Jones, Nathan; Ragogna, Paul (ACS, 2012)The reported chemistry and reactivity of guanidinate supported group 15 elements in the +3 oxidation state, particularly phosphorus, is limited when compared to their ubiquity in supporting metallic elements across the ... -
Electronic Structures and Molecular Properties of Chalcogen Nitrides Se2N2 and SeSN2
Tuononen, Heikki; Suontamo, Reijo; Valkonen, Jussi; Laitinen, Risto S.; Chivers, Tristram (ACS, 2005)The electronic structures and molecular properties of S2N2 as well as the currently unknown chalcogen nitrides Se2N2 and SeSN2 have been studied using various ab initio and density functional methods. All molecules share ... -
Structural and Spectroscopic Studies of the PCP-Bridged Heavy Chalcogen-Centered Monoanions [HC(PPh2E)(PPh2)]− (E = Se, Te) and [HC(PR2E)2]− (E = Se, Te, R = Ph; E = Se, R = iPr): Homoleptic Group 12 Complexes and One-Electron Oxidation of [HC(PR2Se)2]−
Konu, Jari; Tuononen, Heikki; Chivers, Tristram (ACS, 2009)Selenium- and tellurium-containing bis(diphenylphosphinoyl)methane monoanions were prepared by oxidation of the anion [HC(PPh2)2]− with elemental chalcogens. The selenium-containing isopropyl derivative was synthesized by ...