The synthesis and X-ray structure of cobalt(II) complexes of iminobis(phosphinechalcogenides), [Co{N(XPR2)2–X,X′}2] (X=S or Se; R=Ph or Pri)

The [Fe{(SePPh2)2N}2] Complex Revisited: X‐ray Crystallography, Magnetometry, High‐Frequency EPR, and Mössbauer Studies Reveal Its Tetrahedral FeIISe4 Coordination Sphere

“…The FeSe 4 core of complex 1 exhibits a distorted tetrahedral geometry, as reflected by the magnitude of the Se–Fe–Se angles which lie between 101.7(1)° and 115.7(1)° (Table S2). The two endocyclic Se–Fe–Se bite angles amount to 115.7(1)° and are similar to those of the [Fe{(SeP i Pr 2 ) 2 N} 2 ] and [M{(SePPh 2 ) 2 N} 2 ], M = Mn, Co, Zn, complexes listed in Table . The dihedral angle between the planes defined by the endocyclic Se–Fe–Se angles of complex 1 is 86.8°, comparable to those of the [M{(SePPh 2 ) 2 N} 2 ], M = Mn, Co, Zn, complexes (Table ).…”

“…The coordination of selenium to transition metals has also been explored by employing the so called dichalcogenidoimidodiphosphinato ligands, R 2 P(E)NHP(E′)R′ 2 (E, E′ = O, S, Se, Te; R, R ′ = alkyl or aryl groups) . Among this family of chelating ligands, L = [Ph 2 P(Se)NP(Se)Ph 2 ] – , containing E = E′ = Se as donor atoms, and R = R′ = Ph as peripheral groups bonded to the P atoms of the P–N–P backbone, has afforded the following structurally characterized homoleptic complexes with first series transition metal ions (structures deposited in the Cambridge Structural Database, CSD): octahedral M III L 3 , M = V, Cr, tetrahedral M II L 2 , M = Mn, Co, Zn, square planar Ni II L 2 and tetranuclear [Cu I 4 L 3 ]BF 4 …”

A Dinuclear Palladium(II) Complex of the {N(SPPh2)2}- Ligand – Synthesis and Structure

“…The bridging S-P-N-P-S fragment adopts an envelope conformation, where N1 deviates slightly from the P1-S1-S2-P2 leastsquares plane. This conformation was also found for the µ-(κ 2 -S,S ) coordination mode in [Os 3 H(CO) 9 [12,25]. The Pd2-S distances to the chelating {N(SPPh 2 ) 2 } − ligand (Pd2-S3 2.3152(13)Å, Pd2-S4 2.3264(14)Å) are in the same range as observed for Pd1-S1/S2 and Pd2-S1/S2, but slightly shorter than in the related mononuclear complex Fig.…”

Investigating the Structural, Spectroscopic, and Electrochemical Properties of [Fe{(EPiPr2)2N}2] (E = S, Se) and the Formation of Iron Selenides by Chemical Vapor Deposition

“…In the work presented herein, the structural, spectroscopic, and electrochemical investigation of [Fe{(EP i Pr 2 ) 2 N} 2 ] [E = S ( 1 ), Se ( 2 )] is described to extend the dataset of Fe II complexes bearing [R 2 P(E)NP(E)R 2 ] – ligands. The ligands employed in this study afford the structurally characterized first‐row transition‐metal complexes [M II L 2 ] (E = S, M = Mn, Co, Ni, Zn;, E = Se, M = Co, Ni,, Zn) . The [(SeP i Pr 2 ) 2 N] – ligand exhibits a remarkable flexibility, as it affords both tetrahedral and square‐planar [Ni{(SeP i Pr 2 ) 2 N} 2 ] isomers , , .…”