Magnetic properties of lanthanide organometallic sandwich complexes produced in a molecular beam

Ken Miyajima; Mark B. Knickelbein; Atsushi Nakajima

doi:10.1016/j.poly.2005.03.175

Magnetic properties of lanthanide organometallic sandwich complexes produced in a molecular beam

Ken Miyajima, Mark B. Knickelbein, Atsushi Nakajima

Department of Chemistry

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

33 Citations (Scopus)

Abstract

The magnetic properties of gas-phase terbium-cyclooctatetraene multi-decker sandwich complexes, Tb_n(C₈H₈)_n+1 were measured using a Stern-Gerlach type magnetic deflection approach. Beams of Tb_n(C₈H₈)_n+1 complexes displayed one-sided deflection toward high field - indicating that fast spin relaxation occurs within the complexes as they pass through the magnetic field. The magnetic moment for Tb_n(C₈H₈)_n+1 (n = 1-5) was evaluated using the Langevin model. Evolution of magnetic moment with the complex size is discussed with electronic structures for oxidation states of Tb^3+/2+ ions, implying the possibility of antiferromagnetic interaction of two adjacent Tb²⁺ ions.

Original language	English
Pages (from-to)	2341-2345
Number of pages	5
Journal	Polyhedron
Volume	24
Issue number	16-17
DOIs	https://doi.org/10.1016/j.poly.2005.03.175
Publication status	Published - 2005 Nov 17

Keywords

Lanthanides
Magnetic properties
Organometallic sandwich complexes
Spin relaxation
Stern-Gerlach experiments

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.poly.2005.03.175

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title = "Magnetic properties of lanthanide organometallic sandwich complexes produced in a molecular beam",

abstract = "The magnetic properties of gas-phase terbium-cyclooctatetraene multi-decker sandwich complexes, Tbn(C8H8)n+1 were measured using a Stern-Gerlach type magnetic deflection approach. Beams of Tbn(C8H8)n+1 complexes displayed one-sided deflection toward high field - indicating that fast spin relaxation occurs within the complexes as they pass through the magnetic field. The magnetic moment for Tbn(C8H8)n+1 (n = 1-5) was evaluated using the Langevin model. Evolution of magnetic moment with the complex size is discussed with electronic structures for oxidation states of Tb3+/2+ ions, implying the possibility of antiferromagnetic interaction of two adjacent Tb2+ ions.",

keywords = "Lanthanides, Magnetic properties, Organometallic sandwich complexes, Spin relaxation, Stern-Gerlach experiments",

author = "Ken Miyajima and Knickelbein, {Mark B.} and Atsushi Nakajima",

note = "Funding Information: This work was supported in part by the Office of Science, Division of Chemical Science, US-DOE under contract number W-31-109-ENG-38. This work is partly supported by the 21st Century COE program “KEIO Life Conjugate Chemistry” (KEIO-LCC) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.",

year = "2005",

month = nov,

day = "17",

doi = "10.1016/j.poly.2005.03.175",

language = "English",

volume = "24",

pages = "2341--2345",

journal = "Polyhedron",

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T1 - Magnetic properties of lanthanide organometallic sandwich complexes produced in a molecular beam

AU - Miyajima, Ken

AU - Knickelbein, Mark B.

AU - Nakajima, Atsushi

N1 - Funding Information: This work was supported in part by the Office of Science, Division of Chemical Science, US-DOE under contract number W-31-109-ENG-38. This work is partly supported by the 21st Century COE program “KEIO Life Conjugate Chemistry” (KEIO-LCC) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.

PY - 2005/11/17

Y1 - 2005/11/17

N2 - The magnetic properties of gas-phase terbium-cyclooctatetraene multi-decker sandwich complexes, Tbn(C8H8)n+1 were measured using a Stern-Gerlach type magnetic deflection approach. Beams of Tbn(C8H8)n+1 complexes displayed one-sided deflection toward high field - indicating that fast spin relaxation occurs within the complexes as they pass through the magnetic field. The magnetic moment for Tbn(C8H8)n+1 (n = 1-5) was evaluated using the Langevin model. Evolution of magnetic moment with the complex size is discussed with electronic structures for oxidation states of Tb3+/2+ ions, implying the possibility of antiferromagnetic interaction of two adjacent Tb2+ ions.

AB - The magnetic properties of gas-phase terbium-cyclooctatetraene multi-decker sandwich complexes, Tbn(C8H8)n+1 were measured using a Stern-Gerlach type magnetic deflection approach. Beams of Tbn(C8H8)n+1 complexes displayed one-sided deflection toward high field - indicating that fast spin relaxation occurs within the complexes as they pass through the magnetic field. The magnetic moment for Tbn(C8H8)n+1 (n = 1-5) was evaluated using the Langevin model. Evolution of magnetic moment with the complex size is discussed with electronic structures for oxidation states of Tb3+/2+ ions, implying the possibility of antiferromagnetic interaction of two adjacent Tb2+ ions.

KW - Lanthanides

KW - Magnetic properties

KW - Organometallic sandwich complexes

KW - Spin relaxation

KW - Stern-Gerlach experiments

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U2 - 10.1016/j.poly.2005.03.175

DO - 10.1016/j.poly.2005.03.175

M3 - Article

AN - SCOPUS:27744434374

SN - 0277-5387

VL - 24

SP - 2341

EP - 2345

JO - Polyhedron

JF - Polyhedron

IS - 16-17

ER -

Magnetic properties of lanthanide organometallic sandwich complexes produced in a molecular beam

Abstract

Keywords

ASJC Scopus subject areas

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