ChemInform Abstract: Transition Metal Complexes with Sulfur Ligands. Part 28. Ruthenium Complexes of the Pentadentate Thioether Thiolate Ligands dpttd2- (2,3,11,12-Dibenzo-1,4,7,10,13-pentathiatridecane(-2)) and the Sterically Demanding Derivative tBu4-dp

ChemInform ◽  
1987 ◽  
Vol 18 (44) ◽  
Author(s):  
D. SELLMANN ◽  
G. BINKER ◽  
M. MOLL ◽  
C. E. CAMPANA
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Ruthenium Complexes ◽  
Thiolate Ligands ◽  
Sterically Demanding

Übergangsmetallkomplexe mit Schwefelliganden, XXXII*: Synthese der sterisch anspruchsvollen Thiolat-amin-Liganden tbu2-ma-H = 2-Mercapto-3,5-di-tbutylanilin und tbu4-bmae-H2 = 1,2-Bis(2-mercapto-3,5-di-tbutylaniIino)ethan sowie ihrer Eisen-, Ruthenium- und Zink-Komplexe [Fe(CO)2(tbu2-ma)2], [Zn(tbu2-ma)2] und [RuL2(tbu4-bmae)], L = CO, PMe3, PPh3/ Transition Metal Complexes with Sulfur Ligands, XXXII*: Synthesis of the Sterically Demanding New Thiolate-amine Ligands tbu2-ma-H = 2-Mercapto-3,5-di-tbutylanilin und tbu4-bmae-H2 = 1,2-Bis(2-mercapto-3,5-di-tbutylaniIino)ethane as well as of their Iron-, Ruthenium- and Zinc Complexes [Fe(CO)2(tbu2-ma)2], [Zn(tbu2-ma)2] and [RuL2(tbu4-bmae)], L = CO, PMe3, PPh3

1987 ◽  
Vol 42 (10) ◽  
pp. 1291-1297 ◽  
Author(s):  
Dieter Sellmann ◽  
Olaf Käppler
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Acid Hydrolysis ◽  
Organic Solvents ◽  
Transition Metal Complexes ◽  
Zinc Complexes ◽  
Metal Centers ◽  
Sterically Demanding ◽  
Amine Ligands ◽  
Soluble Complexes

Abstract In order to obtain soluble complexes containing sterically protected metal centers the new bi- and tetradentate thiolate amine ligands 2-mercapto-3,5-di-tbutylaniline (= tbu2-ma-H) and 1,2-bis(2-mercapto-3,5-di-tbutylanilino)ethane (= tbu4-mae-H2) were synthesized. tbu2-ma-H reacts with FeCl2-4 H2O and CO to give [Fe(CO)2(tbu2-ma)2], with Zn(ac)2 -2 H2O [Zn(tbu2-ma)2] is obtained whose acid hydrolysis and reaction with H2S, respectively, yield pure tbu2-Ina-H. The condensation of tbu2-ma-H with glyoxal yields the respective bis-benzthiazolidine, which is re­duced by LiAlH4 in the presence of Na[N(SiMe3)2] to tbu4-bmae-H2. tbu4-bmae-Li2. reacts with [Ru(CO)3(THF)Cl2], [Ru(PMe3)4Cl2] and [Ru(PPh3)2(CH3CN)2Cl2], respectively, to yield [Ru(L)2(Tm4-bmae)j (L = CO, PMe3, PPh3). The complexes are more soluble in organic solvents than the corresponding unsubstituted bmae complexes, bmae2- = 1,2-bis(2-mercaptoanilino)- ethane(2-).

Synthesis and Characterisation of Low-Coordinate Transition-Metal Complexes Stabilised by Sterically Demanding Carbazolido Ligands

2009 ◽  
Vol 2009 (17) ◽  
pp. 2547-2552 ◽  
Author(s):  
Andrew E. Ashley ◽  
Andrew R. Cowley ◽  
Jennifer C. Green ◽  
David R. Johnston ◽  
David J. Watkin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Sterically Demanding
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