Английская Википедия:Iron tris(dimethyldithiocarbamate)

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Iron tris(dimethyldithiocarbamate) is the coordination complex of iron with dimethyldithiocarbamate with the formula Fe(S₂CNMe₂)₃ (Me = methyl). It is marketed as a fungicide.

Synthesis, structure, bonding

Iron tris(dithiocarbamate)s are typically are prepared by salt metathesis reactions.

Iron tris(dimethyldithiocarbamate) is an octahedral coordination complex of iron(III) with D₃ symmetry.

Spin crossover (SCO) was first observed in 1931 by Cambi et al. who discovered anomalous magnetic behavior for the tris(N,N-dialkyldithiocarbamatoiron(III) complexes. The spin states of these complexes are sensitive to the nature of the amine substituents.

Reactions

Iron tris(dithiocarbamate)s react with nitric oxide to give a nitrosyl complex:

Шаблон:Chem2

This efficient chemical trapping reaction provides a means to detect NO.

Reflecting the strongly donating properties of dithiocarbamate ligands, iron tris(dithiocarbamate)s oxidize at relatively mild potentials to give isolable iron(IV) derivatives [Fe(S₂CNR₂)₃]⁺.

Iron tris(dithiocarbamate)s react with hydrochloric acid to give the pentacoordinate chloride:

Шаблон:Chem2

Safety

The U.S. Occupational Safety and Health Administration (OSHA) has set the legal (permissible exposure limit) for ferbam exposure in the workplace as 15 mg/m³ over an 8-hour workday. The U.S. National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 1 mg/m³ over an 8-hour workday. At levels of 800 mg/m³, ferbam is immediately dangerous to life and health.

See also

• Zinc dimethyldithiocarbamate - a related dimethyldithiocarbamate complex of zinc
• Nickel bis(dimethyldithiocarbamate) - a related dimethyldithiocarbamate complex of nickel
• Iron tris(diethyldithiocarbamate) - a related dimethyldithiocarbamate complex of iron