Next Article in Journal
Core Size and Interface Impact on the Exchange Bias of Cobalt/Cobalt Oxide Nanostructures
Next Article in Special Issue
Heterometallic Chain Compounds of Tetrakis(µ-carboxylato)diruthenium and Tetracyanidoaurate
Previous Article in Journal
Effects of Perpendicular Magnetic Field Annealing on the Structural and Magnetic Properties of [Co/Ni]2/PtMn Thin Films
Previous Article in Special Issue
Copper(II) Carboxylates with 2,3,4-Trimethoxybenzoate and 2,4,6-Trimethoxybenzoate: Dinuclear Cu(II) Cluster and µ-Aqua-Bridged Cu(II) Chain Molecule
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Magnetochemistry
Volume 7
Issue 3
10.3390/magnetochemistry7030039
magnetochemistry-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Structures and Properties of 4-phpy, pyz, and 4,4′-bpy Adducts of Lantern-Type Dirhodium Complexes with µ-Formamidinato and µ-Carboxylato Bridges

by
Makoto Handa
1,*,
Satoshi Nishiura
1,
Makoto Kano
1,
Natsumi Yano
1,
Haruo Akashi
2,
Masahiro Mikuriya
3,
Hidekazu Tanaka
1,
Tatsuya Kawamoto
4 and
Yusuke Kataoka
1
1
Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue 690-8504, Japan
2
Institute of Frontier Science and Technology, Okayama University of Science, 1-1 Ridaicho, Kita-Ku, Okayama 700-0005, Japan
3
Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
4
Department of Chemistry, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsuka, Kanagawa 259-1293, Japan
*
Author to whom correspondence should be addressed.
Magnetochemistry 2021, 7(3), 39; https://doi.org/10.3390/magnetochemistry7030039
Submission received: 12 February 2021 / Revised: 7 March 2021 / Accepted: 11 March 2021 / Published: 15 March 2021
(This article belongs to the Special Issue Characterization of Coordination Compounds)
Browse Figures
Review Reports Versions Notes

Abstract

Dinuclear and polymer complexes of 4-phenylpyridine (4-phpy), pyazine (pyz), and 4,4′-bipyridine (4,4′-bpy) were prepared by using cis-[Rh2(4-Me-pf)2(O2CR)2] (4-Me-pf- =N,N’-bis(4-methylphenyl)formamidinate anion; R = CF3 and CMe3) as precursor dinuclear units. The dinuclear structures of cis-[Rh2II,II(4-Me-pf)2(O2CR)2(4-phpy)2] and cis-[Rh2II,III(4-Me-pf)2(O2CCMe3)2(4-phpy)2]BF4 and polymer structures of [Rh2II,II(4-Me-pf)2(O2CR)2(L)]n (L = pyz and 4,4′-bpy) were confirmed by X-ray crystal structure analyses. In these complexes, the lantern-type dinuclear core structures with cis-(2:2) arrangement of formamidinato (4-Me-pf-) and carboxylato ligands are preserved with Rh–Rh distances of 2.44–2.47 Å, regardless of the difference in the axial ligand and oxidation state Rh2II,II or Rh2II,III. In the cyclic voltammograms (CVs) in CH2Cl2, the redox potentials for Rh2II,III/Rh2II,II were estimated as E1/2 = 0.07 V and −0.28 V (vs. Fc+/Fc) for cis-[Rh2(4-Me-pf)2(O2CCF3)2(4-phpy)2] and cis-[Rh2(4-Me-pf)2(O2CCMe3)2(4-phpy)2], respectively, negatively shifted by 0.16 and 0.12 V compared with those of corresponding parent dinuclear complexes. The results were interpreted that the axial interaction with 4-phpy ligands makes the Rh2II,II core oxidized easily. The oxidized complex cis-[Rh2(4-Me-pf)2(O2CCMe3)2(4-phpy)2]BF4 is paramagnetic, which was confirmed by effective magnetic moment value μeff = 1.90 μB at 300 K per Rh2II,III unit (S = 1/2). The polymer complexes [Rh2(4-Me-pf)2(O2CR)2(L)]n (L = pyz and 4,4′-bpy) showed Type II gas-adsorption properties for N2.
Keywords: lantern-type dirhodium complex; formamidinate; trifluoroacetate; pivalate; mixed-ligand complexes; bis-adduct complexes; polymer complexes lantern-type dirhodium complex; formamidinate; trifluoroacetate; pivalate; mixed-ligand complexes; bis-adduct complexes; polymer complexes
Graphical Abstract

Share and Cite

MDPI and ACS Style

Handa, M.; Nishiura, S.; Kano, M.; Yano, N.; Akashi, H.; Mikuriya, M.; Tanaka, H.; Kawamoto, T.; Kataoka, Y. Structures and Properties of 4-phpy, pyz, and 4,4′-bpy Adducts of Lantern-Type Dirhodium Complexes with µ-Formamidinato and µ-Carboxylato Bridges. Magnetochemistry 2021, 7, 39. https://doi.org/10.3390/magnetochemistry7030039

AMA Style

Handa M, Nishiura S, Kano M, Yano N, Akashi H, Mikuriya M, Tanaka H, Kawamoto T, Kataoka Y. Structures and Properties of 4-phpy, pyz, and 4,4′-bpy Adducts of Lantern-Type Dirhodium Complexes with µ-Formamidinato and µ-Carboxylato Bridges. Magnetochemistry. 2021; 7(3):39. https://doi.org/10.3390/magnetochemistry7030039

Chicago/Turabian Style

Handa, Makoto, Satoshi Nishiura, Makoto Kano, Natsumi Yano, Haruo Akashi, Masahiro Mikuriya, Hidekazu Tanaka, Tatsuya Kawamoto, and Yusuke Kataoka. 2021. "Structures and Properties of 4-phpy, pyz, and 4,4′-bpy Adducts of Lantern-Type Dirhodium Complexes with µ-Formamidinato and µ-Carboxylato Bridges" Magnetochemistry 7, no. 3: 39. https://doi.org/10.3390/magnetochemistry7030039

APA Style

Handa, M., Nishiura, S., Kano, M., Yano, N., Akashi, H., Mikuriya, M., Tanaka, H., Kawamoto, T., & Kataoka, Y. (2021). Structures and Properties of 4-phpy, pyz, and 4,4′-bpy Adducts of Lantern-Type Dirhodium Complexes with µ-Formamidinato and µ-Carboxylato Bridges. Magnetochemistry, 7(3), 39. https://doi.org/10.3390/magnetochemistry7030039

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop