Structure and magnetic properties of monophenylphosphinate bridged chain polymers of manganese(II), [MnL2(HPhPO2)2]x (where L = HPhPO2H, CH3CONH2, H2O, HCONH(CH3), and C5H5N)

Du, Jing-Long; Rettig, Steven J.; Thompson, Robert C.; Trotter, James; Betz, P.; Bino, Avi

doi:10.1139/v92-098

Cited by 16 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Crystal Data and Structure Refinement cm -1 )[21] and acrylamide (1681 cm -1 )[21] which suggests an (C=)Obinding mode. We note that lowered  CO s of the O-bound acetamides and acrylamides have been reported for their metal complexes [22][23][24]. In addition, the IR absorption bands centered at ~1100 (br) and ~622 cm -1 indicate the presence of uncoordinated perchlorate anion in the complexes [25].…”

mentioning

confidence: 61%

Synthesis, characterization and solid state molecular structures of five- and six-coordinate primary amide manganese porphyrin complexes

Bevak

Armstrong

et al. 2017

Polyhedron

View full text Add to dashboard Cite

mentioning

confidence: 61%

Synthesis, characterization and solid state molecular structures of five- and six-coordinate primary amide manganese porphyrin complexes

Bevak

Armstrong

et al. 2017

Polyhedron

View full text Add to dashboard Cite

“…Figure shows the plots of the 2 J values against the M---M distances found in several 1D compounds in which high-spin Mn(+2) ions (Table S2), ,− Co(+2) ions (Table S3), ,,,− and Ni(+2) ions (Table S4) ,,− are bridged by organic molecules or second metals. As a general trend, the strength of the interaction becomes weaker as the M---M distance becomes longer.…”

Section: Resultsmentioning

confidence: 99%

Dimerization of Paramagnetic Trinuclear Complexes by Coordination Geometry Changes Showing Mixed Valency and Significant Antiferromagnetic Coupling through −Pt···Pt– Bonds

Takamori

Uemura

2022

Inorg. Chem.

View full text Add to dashboard Cite

Paramagnetic trinuclear complexes, trans-[Pt 2 M-(piam) 4 (NH 3 ) 4 ](ClO 4 ) x (t-M; piam = pivalamidate, M = Mn, Fe, Co, Ni, and Cu, x = 2 or 3), aligned as Pt−M−Pt were successfully synthesized and characterized. The dihedral angles between the Pt and M coordination planes in t-M are approximately parallel, showing straight metal−metal bonds with distances of approximately 2.6 Å. Except for t-Fe, the trinuclear complexes are dimerized with close contact (approximately 3.9 Å) between the end Pt atoms to form Pt−M−Pt•••Pt−M−Pt alignments with high-spin M(+2) containing five (t-Mn), three (t-Co), two (t-Ni), and one (t-Cu) unpaired electrons localized on M atoms. Several physical measurements and calculations revealed that the dimerized structures were maintained in MeCN, where cyclic voltammograms for t-M exhibited two-step oxidation and reduction attributed to Pt−Mvia mixed-valent states. Magnetic susceptibility measurements for t-M showed antiferromagnetic interaction, t-Mn: J = −0.9 cm −1 , t-Co: J = −3.5 cm −1 , t-Ni: J = −7.3 cm −1 , and t-Cu: J = 0.0 cm −1 , between the two M centers with distances of 9.0 Å through Pt•••Pt bonds.

show abstract

Models for Terminal Ni(S-Cysteine) Modification in [NiFe]Hydrogenases by Iodoacetamide and Iodoacetate

Smee

Goodman

Reibenspies

et al. 1999

Eur. J. Inorg. Chem.

View full text Add to dashboard Cite

The cis‐dithiolate complex [N,N′‐bis(2‐mercaptoethyl‐2‐methylpropyl)‐1,5‐diazacyclooctane]nickel(II) (Ni‐1*) reacts with stoichiometric amounts of iodoacetamide to yield S‐alkylated, mono‐ and diacetamide complexes, [(AA)Ni‐1*][I] and [(AA)2Ni‐1*][I]2. Their molecular structures are established by X‐ray crystallography and find the former in pseudo‐square planar geometry with no additional coordination of the amide functionality, while the latter is an octahedral N2S2O2NiII complex. The assignment of the axial coordination ligands as amide oxygen atoms is consistent with IR‐spectroscopic ν(C=O) results both in the solid and solution states. The complexes are further characterized by UV/Vis spectroscopy, conductance measurements, and electrochemical studies. Comparisons are drawn between the alkylation of these simple dithiolate complexes and the loss of [NiFe]hydrogenase activity upon addition of alkylating agents.

show abstract

Structure and magnetic properties of monophenylphosphinate bridged chain polymers of manganese(II), [MnL₂(HPhPO₂)₂]_x (where L = HPhPO₂H, CH₃CONH₂, H₂O, HCONH(CH₃), and C₅H₅N)

Cited by 16 publications

References 8 publications

Synthesis, characterization and solid state molecular structures of five- and six-coordinate primary amide manganese porphyrin complexes

Synthesis, characterization and solid state molecular structures of five- and six-coordinate primary amide manganese porphyrin complexes

Dimerization of Paramagnetic Trinuclear Complexes by Coordination Geometry Changes Showing Mixed Valency and Significant Antiferromagnetic Coupling through −Pt···Pt– Bonds

Models for Terminal Ni(S-Cysteine) Modification in [NiFe]Hydrogenases by Iodoacetamide and Iodoacetate

Contact Info

Product

Resources

About