56423-74-6Relevant academic research and scientific papers
DONATORSUBSTITUIERTE POLYACETYLENE UND ANALOGA II. NOTIZ UEBER DIE SYNTHESE EINFACHER DERIVATE DES NEUEN HETEROBICYCLISCHEN GRUNDKOERPERS 3H,6H-1,2-DITHYOLO(1,2)-DITHIOL
Richter, Andreas M.,Fanghaenel, Egon
, p. 3577 - 3578 (1983)
Sulfuration of 2,3-di-tert-butylthio-fumarates with phosphorus-pentasulfide leads to 3H,6H-1,2-dithiolo(1,2)-dithiol-3,6-dithione.Desulfuration gives the mono-thione and di-one, respectively.
EINKRISTALL-MOLEKUELSTRUKTUREN 55 DITHIOLO-DITHIOL-DITHION C4S6 UND DITHIOL-DITHIOL-DION C4O2S4
Bock, Hans,Naether, Christian,Rauschenbach, Andreas,Havlas, Zdenek,Bats, Jan W.
, p. 53 - 68 (2007/10/03)
The two iso(valence)electronic molecules, the violet-blue 3H,6H-1,2-Dithiolo-1,2-dithiol-3,6-dithione and its yellow oxygen analogue, the corresponding dione, are characterized by single crystal structure determinations and quantum chemical calculations to gain information on similarities and differences.The molecular structures are comparable except for the O perturbation, which causes short C=O and long (O)C-S bonds; the carbon chain CC bond lengths alternate between 143 and 134 pm.The crystal lattices are both monoclinic (P21/c), but with moleculesarranged differently in β-type and γ-type layered staples due to 293 pm short (S...O)2 dimer contacts.The color differences can be rationalized by extensive PM3/Cl-calculations.Accordingly, both molecules exhibit long wavelength ? ?*-transitions (1Ag) (1Bu), with the one of the sulfur derivative further lowered by a strong ns? nss* admixture.In addition, structural changes are discussed, which are expected for potentially conducting polymers containing disulfide-bridged chains on doping with suitable acceptors.Key words: Sulfur heterocycles C4H6 and C4O2S4, single crystal structures, quantum chemical calculations.
Addition Compounds of Nucleophiles and 3-Ethylthio-6-oxo-6H-1,2-dithiolo1,2-dithiolium Tetrafluoroborate. Synthesis of 3H,6H-1,2-Dithiolo1,2-dithiole-3-one-6-thione
Kordts, Bernd,Richter, Andreas M.,Fanghaenel, Egon
, p. 71 - 75 (2007/10/02)
A smooth method of synthesizing 3H,6H-1,2-dithiolo1,2-dithiole-3,6-dithione (3),and also its partial desulfuration to yield 3H,6H-1,2-dithiolo1,2-dithiole-3-one-6-thione (4) is presented.The ethylation product 5 of the monothione 4 reacts wi
