Diethylcarbamodithioic acid - cadmium
[CAS# 7346-68-1]

Identification

• Classification: Organic raw materials >> Carboxylic compounds and derivatives
• Name: Diethylcarbamodithioic acid - cadmium
• Synonyms: cadmium diethylcarbamodithioic acid
• Molecular Formula: C₅H₁₁CdNS₂
• Molecular Weight: 261.69
• CAS Registry Number: 7346-68-1
• SMILES: CCN(CC)C(=S)S.[Cd]

Discovory and Applicatios

Diethylcarbamodithioic acid cadmium complex, often referred to as cadmium diethyl dithiocarbamate, is a coordination compound formed between cadmium ions and diethylcarbamodithioic acid ligands. Diethylcarbamodithioic acid belongs to the class of dithiocarbamic acids, which are characterized by the presence of a dithiocarbamate group (–N(CS₂)–) attached to organic substituents, in this case, two ethyl groups. These compounds act as bidentate ligands, coordinating to metal ions through their sulfur atoms.

The formation of cadmium complexes with diethylcarbamodithioic acid arises from the strong affinity between the soft acid cadmium ion (Cd²⁺) and the soft base sulfur atoms of the dithiocarbamate ligand. This interaction results in stable metal–sulfur bonds, producing coordination compounds with distinct chemical and physical properties.

Diethylcarbamodithioic acid cadmium complexes have been extensively studied for their applications in various fields. One significant use is in agriculture as part of fungicides and pesticides formulations. These complexes exhibit biological activity against a range of fungal pathogens, benefiting crop protection. The complex’s ability to deliver cadmium ions in a controlled manner contributes to its effectiveness as a biocidal agent.

In material science, cadmium dithiocarbamate complexes serve as precursors for the synthesis of cadmium sulfide (CdS) nanoparticles and thin films. Thermal decomposition of these complexes under controlled conditions yields high-purity CdS, a semiconductor material widely used in optoelectronic devices such as photodetectors, solar cells, and light-emitting diodes. The use of metal dithiocarbamate complexes allows for precise control over the composition and morphology of the resulting CdS nanomaterials.

The synthesis of diethylcarbamodithioic acid cadmium complexes typically involves reacting cadmium salts with diethylcarbamodithioic acid or its sodium salt under suitable conditions. The resulting complexes are usually air-stable solids that can be characterized by spectroscopic techniques, including infrared spectroscopy, which confirms the coordination through characteristic C–S and metal–sulfur vibrations.

Due to the toxicity of cadmium, the handling and application of its complexes require strict safety measures. Cadmium compounds are known for their environmental and health hazards, which limit their use and encourage research into safer alternatives or methods to minimize cadmium release.

In summary, diethylcarbamodithioic acid cadmium complexes are coordination compounds formed by the interaction of cadmium ions with diethylcarbamodithioic acid ligands. They have practical applications in agriculture as fungicides and serve as important precursors in the synthesis of cadmium sulfide nanomaterials used in semiconductor technology. Their chemistry exemplifies the utility of dithiocarbamate ligands in stabilizing metal ions and facilitating material synthesis, albeit with consideration of cadmium’s toxicity.