Magnetic properties of polynuclear cobalt cluster with N-(2-hydroxybenzyl)ethanolamine

Abstract

Molecular geometry and molar magnetic moment of hexanuclear cobalt(Co_3IIICo_3II) complex with N-(2-hydroxybenzyl)ethanolamine is given in this chapter.

Substance

Hexanuclear cobalt(Co₃^IIICo₃^II) complex with N-(2-hydroxybenzyl)ethanolamine; [Co₆(L)₆(OH)(H₂O)₃]Cl₂.10H₂O

Gross Formula

C₅₄H₉₃Cl₂Co₆N₆O₂₆

Properties

Product of molar magnetic susceptibility with temperature

Structure

[Co6(L)6(OH)(H2O)3]Cl2.10H2O;	H2L = N-(2-hydroxybenzyl) ethanolamine

Data

T [K]	χg [10−6 emu/g]	χMT [cm3 K mol−1]	pm or μeff [μB]	ΘP [K]	Method	Remarks
300 5.0	– –	8.47 3.02	–	–	SQUID	Hexanuclear Co3IIICo3II complex with a face-sharing defective cubane-like units; the whole entity adopts a crown shape

1. T: Temperature
2. χ_g: Specific susceptibility
3. χ_M: Molar susceptibility
4. p_m, μ_eff: Effective magnetic moment per molecule
5. Θ_P: Paramagnetic Curie constant (Weiss constant)

Additional Remark

• (i) Antiferromagnetic coupling between Co^II₃ moiety is observed

Symbols and Abbreviations

Short form	Full form
T	temperature
χg	magnetic susceptibility per gram (specific susceptibility)
χM	magnetic susceptibility per mole (molar susceptibility)
p m	effective magnetic moment per molecule
μ eff	effective magnetic moment
Θ P	paramagnetic Curie constant (Weiss constant)
SQUID	superconducting quantum interference device