25474-92-4

Basic information

• Product Name: 1$l^{4},3-dithia-2,4-diazacyclobuta-1,4-diene
• Synonyms: 1l4d2-1,3,2,4-Dithiadiazete
• CAS NO: 25474-92-4
• Molecular Formula: N₂S₂
• Molecular Weight: 92.1434
• Mol File: 25474-92-4.mol
• Article Data: 3

Chemical Properties

• Density: 2.22g/cm³
• Refractive Index: 2.075
• CAS DataBase Reference: 1$l^{4},3-dithia-2,4-diazacyclobuta-1,4-diene(CAS DataBase Reference)
• NIST Chemistry Reference: 1$l^{4},3-dithia-2,4-diazacyclobuta-1,4-diene(25474-92-4)
• EPA Substance Registry System: 1$l^{4},3-dithia-2,4-diazacyclobuta-1,4-diene(25474-92-4)

Safety Data

• Hazardous Substances Data: 25474-92-4(Hazardous Substances Data)

Usage

General Description

1,3-dithia-2,4-diazacyclobuta-1,4-diene, also known as TDD, is a chemical compound with the molecular formula C2H4N2S2. It is a heterocyclic organic compound that contains a four-membered ring with two nitrogen atoms, two sulfur atoms, and two double bonds. TDD is a stable and colorless liquid at room temperature with a slightly unpleasant odor. It is synthesized through a two-step reaction starting from 3-methylthiopropionaldehyde and cyanamide. TDD has potential applications in various fields including pharmaceuticals, materials science, and chemical synthesis due to its unique properties and structural features. Additionally, it is used as a building block for the synthesis of complex organic compounds and as a ligand in metal coordination chemistry.

Upstream product

• 12033-56-6 poly(sulfur nitride) 

Downstream Products

• 12033-56-6 poly(sulfur nitride) 
• 7704-34-9 sulfur 

Relevant articles and documents

Vaporization of (SN)x: He I Photoelectron Spectrum and ab Initio Calculations for the S3N3 Radical

The S3N3 radical, never previously characterized, is shown to be the major semistable component of the vaporization products of the (SN)x polymer, as identified by He I photoelectron spectroscopy and in situ quadrupole mass spectrometry.This species can be recondensed to yield the (SN)x polymer and other colored materials.Revaporization produces S3N3 in addition to S4N4, S4N2, and S2N2.Ab initio calculations with better than a double-ζ basis set and including configuration interaction provide evidence for a 2A2 radical with a planar ring geometry close to D3h.The ground-state cation also has a planar ring geometry with 3A2' favored over 1A1'.

S4N4 and its Derivatives: Preparation, Structure and Thermolysis of CuBr*S4N4

The crystalline black polymeric CuI complex CuBr*S4N4 can be prepared in high yield from Cu(NO3)2*3H2O, NH4Br and S4N4 in methanol.An X-ray structure analysis shows that it is isostructural with CuCl*S4N4.The crystals contain infinite chains and the Cu atoms of adjacent chains are bridged by S4N4 groups.The Cu atoms have an almost tetrahedral coordination.The 1,3-N,N'-bonded S4N4 group has the same conformation and, within narrow limits, the same dimensions as free S4N4.Thermolysis of CuBr*S4N4 at 180 deg C yields among other products CuBr, S4N4 and S2N2. - Key wor ds: Copper(I) Complex, Tetrasulfurtetranitrid Adduct, Disulfurdinitrid, Molecular Structure, Inorganic Polymer