20968-81-4Relevant academic research and scientific papers
Group 13 metal carbochalcogenoato complexes: Synthesis, X-ray structure analysis, and reactions
Nakata, Norio,Kato, Shinzi,Niyomura, Osamu,Ebihara, Masahiro
, (2018/11/23)
A series of alkali metal tetrakis(carbochalcogenoato)-gallates and -indates M[M′(EOCR)4](solv.) (M?=?alkali metal; M′?=?Ga, In; E?=?S, Se) and tris(carbodithioato)aluminum, -gallates and -indates M′ (SSCR)3 (M′?=?Al, Ga, In) were prepared by the reactions of alkali metal carbochalcogenate with metal trihalogenides (M′X3; M′?=?Al, Ga, In; X?=?Cl, Br) and by those of piperidinium carbodithioates or carbodithioic and carboselenoic acids with M′X3, respectively. An X-ray molecular structure analysis revealed that they have an acetone molecule as a crystal solvent. The reactions of the potassium complexes K[M′ (EOCR)4](H2O) (E?=?S, Se) with methanol and primary and secondary amines gave the corresponding methyl ester and amides in good yields, while the reactions with iodomethane and iodine gave S- and Se-methyl chalcogenoesters RCOEMe (E?=?S, Se) in good yields. Similar reactions of the tris(carbodithioato)gallates and -indates led to the corresponding O-methyl thioesters, thioamides, and S-methyl dithioesters in moderate to good yields. Oxidation of the tetrakis- and tris-derivatives with iodine afforded the corresponding diacyl dichalcogenides (RCOE)2 (E?=?S, Se) and di(carbothioyl) disulfides in quantitative yields. These reactions appeared to occur on the carbonyl or selenium atom of the tetrakis compounds and on the sulfide sulfur or thiocarbonyl carbon atom of the tris-compounds, respectively. A possible mechanism for these I2-oxidation reactions is discussed.
Gallium and indium dithiocarboxylates: Synthesis, spectroscopic characterization and structure of [MeGa(S2Ctol)2]
Ghoshal, Shamik,Jain, Vimal K.,Dutta, Dimple P.,Phadnis, Prasad P.,Nethaji, Munirathinam
, p. 5838 - 5844 (2008/10/09)
Several gallium and indium dithiocarboxylate complexes of the type [MenM(S2CR)3-n] (M = Ga, In; n = 0, 1, 2; R = phenyl (Ph), p-tolyl (tol), mesityl (Mes)) have been synthesized. These complexes were characterized by elemental analysis, IR, UV-vis and NMR(1H,13C{1H}) spectroscopy. Structure o f [MeGa(S2Ctol)2] was established by X-ray crystallography. The gallium atom adopts a distorted five coordinate geometry which is intermediate between trigonal bipyramidal and square pyramidal configurations. The complex [Me2InS2Ctol] underwenta two-step thermal decomposition leading to the formation of tetragonal β-In2S3.
