Substance

Cobalt(II) cluster with acetate, dicyanamide and di-2-pyridyl-hemiacetal ligands; [Co4(O2CMe)2{N(CN)2}2(L)4].10H2O

Gross Formula

C52H62Co4N14O22

Properties

Product of molar magnetic susceptibility with temperature and exchange energy

Structure

[Co4(O2CMe)2{N(CN)2}2(L)4].10H2O;

L = monoamion of the diol form of di-2-pyridyl ketone

 

Data

T [K]

χg [10−6 emu/g]

χMT [cm3 K mol−1]

pm or μeff [μB]

ΘP [K]

Method

Remarks

300

45

6..0

2.0

–

–

–

–

11.85

12.35

13.67

11.58

–

–

SQUID

Tetranuclear cluster

  1. T: Temperature
  2. χg: Specific susceptibility
  3. χM: Molar susceptibility
  4. pm, μeff: Effective magnetic moment per molecule
  5. ΘP: Paramagnetic Curie constant (Weiss constant)

Additional Remark

  1. (i)

    Weak ferromagnetic behavior 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