Synthesis and Characterization of Two New Mixed-Valent Mn6 Complexes Derived from a Well-Explored 2‑Hydroxymethyl Pyridine Along with the Use of Newly Employed Carboxylate Ions

Michael A. Reagan; Eric T. Drew; Z. John Chang; Clifford W. Padgett; Jeffery A. Orvis; Arpita Saha

doi:10.1016/j.inoche.2018.09.008

Synthesis and Characterization of Two New Mixed-Valent Mn6 Complexes Derived from a Well-Explored 2‑Hydroxymethyl Pyridine Along with the Use of Newly Employed Carboxylate Ions

Michael A. Reagan, Eric T. Drew, Z. John Chang, Clifford W. Padgett, Jeffery A. Orvis, Arpita Saha

Biochemistry, Chemistry, & Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The syntheses, crystal structures and magnetochemical characterization are reported for two new mixed-valent manganese complexes, [Mn^II ₂Mn^III ₂(H₂O)₂(hmp)₆(NO₃)₂][Mn^II(NO₃)₃hmpH]₂ (1) and, [Mn^II ₂Mn^III ₄O₂(hmp)₄(hmpH)₂(EtC(Me)₂COO)₄Cl₂](EtC(Me)₂COO)₂ (2) incorporating the anion of 2‑hydroxymethyl pyridine. Complexes were further characterized by elemental analysis, IR & UV–Visible spectroscopy, single-crystal X-ray diffraction and thermogravimetric analysis. Variable temperature, solid-state direct current (dc) magnetization studies were carried out on both the complexes 1 and 2 in the 5.0–310 K range, and they established the complexes to have ground state spin values of S = 9 for 1 and S = 4 for 2.

Original language	American English
Journal	Inorganic Chemistry Communication
Volume	97
DOIs	https://doi.org/10.1016/j.inoche.2018.09.008
State	Published - Sep 24 2018

Keywords

Coordination chemistry
Molecular magnetism
Polynuclear Mn complexes

DC Disciplines

Physical Sciences and Mathematics
Chemistry

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https://www.sciencedirect.com/science/article/pii/S1387700318305926#!

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@article{f2cbe4a40f35469e94247f154756f96b,

title = "Synthesis and Characterization of Two New Mixed-Valent Mn6 Complexes Derived from a Well-Explored 2‑Hydroxymethyl Pyridine Along with the Use of Newly Employed Carboxylate Ions",

abstract = "The syntheses, crystal structures and magnetochemical characterization are reported for two new mixed-valent manganese complexes, [MnII 2MnIII 2(H2O)2(hmp)6(NO3)2][MnII(NO3)3hmpH]2 (1) and, [MnII 2MnIII 4O2(hmp)4(hmpH)2(EtC(Me)2COO)4Cl2](EtC(Me)2COO)2 (2) incorporating the anion of 2‑hydroxymethyl pyridine. Complexes were further characterized by elemental analysis, IR & UV–Visible spectroscopy, single-crystal X-ray diffraction and thermogravimetric analysis. Variable temperature, solid-state direct current (dc) magnetization studies were carried out on both the complexes 1 and 2 in the 5.0–310 K range, and they established the complexes to have ground state spin values of S = 9 for 1 and S = 4 for 2.",

keywords = "Coordination chemistry, Molecular magnetism, Polynuclear Mn complexes",

author = "Reagan, {Michael A.} and Drew, {Eric T.} and Chang, {Z. John} and Padgett, {Clifford W.} and Orvis, {Jeffery A.} and Arpita Saha",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = sep,

day = "24",

doi = "10.1016/j.inoche.2018.09.008",

language = "American English",

volume = "97",

journal = "Inorganic Chemistry Communication",

}

TY - JOUR

T1 - Synthesis and Characterization of Two New Mixed-Valent Mn6 Complexes Derived from a Well-Explored 2‑Hydroxymethyl Pyridine Along with the Use of Newly Employed Carboxylate Ions

AU - Reagan, Michael A.

AU - Drew, Eric T.

AU - Chang, Z. John

AU - Padgett, Clifford W.

AU - Orvis, Jeffery A.

AU - Saha, Arpita

PY - 2018/9/24

Y1 - 2018/9/24

N2 - The syntheses, crystal structures and magnetochemical characterization are reported for two new mixed-valent manganese complexes, [MnII 2MnIII 2(H2O)2(hmp)6(NO3)2][MnII(NO3)3hmpH]2 (1) and, [MnII 2MnIII 4O2(hmp)4(hmpH)2(EtC(Me)2COO)4Cl2](EtC(Me)2COO)2 (2) incorporating the anion of 2‑hydroxymethyl pyridine. Complexes were further characterized by elemental analysis, IR & UV–Visible spectroscopy, single-crystal X-ray diffraction and thermogravimetric analysis. Variable temperature, solid-state direct current (dc) magnetization studies were carried out on both the complexes 1 and 2 in the 5.0–310 K range, and they established the complexes to have ground state spin values of S = 9 for 1 and S = 4 for 2.

AB - The syntheses, crystal structures and magnetochemical characterization are reported for two new mixed-valent manganese complexes, [MnII 2MnIII 2(H2O)2(hmp)6(NO3)2][MnII(NO3)3hmpH]2 (1) and, [MnII 2MnIII 4O2(hmp)4(hmpH)2(EtC(Me)2COO)4Cl2](EtC(Me)2COO)2 (2) incorporating the anion of 2‑hydroxymethyl pyridine. Complexes were further characterized by elemental analysis, IR & UV–Visible spectroscopy, single-crystal X-ray diffraction and thermogravimetric analysis. Variable temperature, solid-state direct current (dc) magnetization studies were carried out on both the complexes 1 and 2 in the 5.0–310 K range, and they established the complexes to have ground state spin values of S = 9 for 1 and S = 4 for 2.

KW - Coordination chemistry

KW - Molecular magnetism

KW - Polynuclear Mn complexes

UR - https://digitalcommons.georgiasouthern.edu/chem-facpubs/138

UR - https://www.sciencedirect.com/science/article/pii/S1387700318305926#!

U2 - 10.1016/j.inoche.2018.09.008

DO - 10.1016/j.inoche.2018.09.008

M3 - Article

VL - 97

JO - Inorganic Chemistry Communication

JF - Inorganic Chemistry Communication

ER -

Synthesis and Characterization of Two New Mixed-Valent Mn6 Complexes Derived from a Well-Explored 2‑Hydroxymethyl Pyridine Along with the Use of Newly Employed Carboxylate Ions

Abstract

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