Zirconium alkyls with ancillary cyclooctatetraenyl ligands. X-ray crystal structures of [Li(tmed)][(C8H8)Zr(p-C6H4Me)Cl2] and (C8H8)Zr[CH(SiMe3)2]2

被引：1

作者：

Nelsen, Melissa J. ^{[1
]}

Girolami, Gregory S. ^{[1
]}

机构：

[1] Univ Illinois, Sch Chem Sci, 600 South Mathews Ave, Urbana, IL 61801 USA

来源：

POLYHEDRON | 2020年 / 187卷

基金：

美国国家科学基金会;

关键词：

Zirconium; Hafnium; Alkyls; Aryls; Cyclooctatetraene; MOLECULAR-STRUCTURE; IMIDO COMPLEXES; METAL; DERIVATIVES; TITANIUM; BOND; CYCLOPENTADIENYL; STEREOCHEMISTRY; CONFORMATION; HAFNIUM;

D O I：

10.1016/j.poly.2020.114581

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Several new group 4 alkyl and aryl compounds have been synthesized that possess ancillary cyclooctatetraene ligands. Most of the complexes isolated are anionic and have stoichiometries of [Li(tmed)(2)][(C8H8)-MRCl2], [Li(tmed)(x)][(C8H8)-MR2Cl], or [Li(tmed)(x)][(C8H8)MR3], where M = Zr or Hf, and R = Me, Ph, p-Tol, or CH(SiMe3)(2). Two neutral 14-electron compounds have also been prepared, (C8H8)M[CH(SiMe3)(2)](2 ), where R = Zr or Hf. The compound (C8H8)Zr[CH(SiMe3)(2)](2) appears to react reversibly with 7 atm of carbon monoxide but does not react with dihydrogen even at 70 atm. IR, H-1 and C-13 NMR data are reported, along with the crystal structures of two of the new compounds. (C) 2020 Published by Elsevier Ltd.

引用

页数：8

共 35 条

[1] IMPROVED SYNTHESIS AND STRUCTURE OF SOLVATED AND UNSOLVATED FORMS OF CYCLOOCTATETRAENE-ZIRCONIUM AND CYCLOOCTATETRANE-HAFNIUM DICHLORIDE [J].

BERNO, P ;

FLORIANI, C ;

CHIESIVILLA, A ;

RIZZOLI, C .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1991, (11) :3093-3095

[2] CARBON HYDROGEN AND METAL-CARBON BOND FORMATION AND BREAKAGE IN THERMAL-REACTIONS OF BIS(MESITYL)(CYCLO-OCTATETRAENE)ZIRCONIUM(IV) DERIVATIVES - CRYSTAL-STRUCTURES OF [ZR(ETA-8-C8H8)(MES)2], [(ZR(ETA-8-C8H8)[ETA-OC(MES)2])2], [(ZR(ETA-8-C8H8)-(MU-2,4-ME2-6-CH2C6H2))2], AND [(ZR(ETA-8-C8H8))2(MU-MES)(MU-2,4-ME2-6-CHC6H2)] (MES = 2,4,6-ME3C6H2) [J].

BERNO, P ;

STELLA, S ;

FLORIANI, C ;

CHIESIVILLA, A ;

GUASTINI, C .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1990, (09) :2669-2677

[3] BIS(CYCLOOCTATETRAENE) DERIVATIVES OF ZIRCONIUM(IV) AND HAFNIUM(IV) - SYNTHESES AND LEWIS BASE ADDUCTS - CRYSTAL-STRUCTURES OF [ZR(ETA-8-C8H8)(ETA-4-C8H8)], [HF(ETA-8-C8H6(SIME3)2)-(ETA-4-C8H6(SIME3)2)], [ZR(ETA-8-C8H8)(ETA-4-C8H8)(NH3)] AND [ZR(ETA-8-C8H8)(ETA-4-C8H8)(CNBUT)] [J].

BERNO, P ;

FLORIANI, C ;

CHIESIVILLA, A ;

RIZZOLI, C .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1991, (11) :3085-3091

[4] Synthesis and molecular and electronic structure of monomeric [Ti(η8-C8H8)(NBut)] [J].

Blake, AJ ;

Dunn, SC ;

Green, JC ;

Jones, NM ;

Moody, AG ;

Mountford, P .

CHEMICAL COMMUNICATIONS, 1998, (11) :1235-1236

[5] STEREOCHEMISTRY OF TRANSITION-METAL CYCLOOCTATETRAENYL COMPLEXES - TRIS(CYCLOOCTATETRAENE)DICHROMIUM, A NOVEL STEREOCHEMISTRY FOR A COMPOUND CONTAINING A QUADRUPLE METAL-METAL BOND [J].

BRAUER, DJ ;

KRUGER, C .

INORGANIC CHEMISTRY, 1976, 15 (10) :2511-2514

[6] STEREOCHEMISTRY OF TRANSITION-METAL CYCLOOCTATETRAENYL COMPLEXES - MOLECULAR-STRUCTURE OF (ETA-CYCLOOCTATETRAENYL) (ETA-ALLYL)-TERT-BUTOXYZIRCONIUM [J].

BRAUER, DJ ;

KRUGER, C .

ORGANOMETALLICS, 1982, 1 (01) :204-207

[7] MOLECULAR AND ELECTRONIC-STRUCTURES OF BIS[1,4-BIS(TRIMETHYL-SILYL)CYCLOOCTATETRAENE] SANDWICH COMPLEXES OF TITANIUM AND ZIRCONIUM [J].

CLOKE, FGN ;

GREEN, JC ;

HITCHCOCK, PB ;

JOSEPH, SCP ;

MOUNTFORD, P ;

KALTSOYANNIS, N ;

MCCAMLEY, A .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1994, (19) :2867-2874

[8] FACILE FORMATION OF A BRIDGING CYCLOOCTATRIENEYNE LIGAND - SYNTHESIS AND MOLECULAR-STRUCTURE OF [(ETA-C8H6(SIME(3))(2))ZR(CH(SIME(3))(2))(MU-ETA(8)ETA(2)-C8H4(SIME(3))(2))ZR(CH(SIIME(3))(2))] [J].

CLOKE, FGN ;

HITCHCOCK, PB ;

JOSEPH, SCP .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (10) :1207-1208

[9]

COPPENS P, 1974, J APPL CRYSTALLOGR, V7, P315, DOI 10.1107/S0021889874010259

[10] PREPARATION AND STRUCTURES OF HOMOLOGOUS QUADRUPLY BONDED "TRIS(CYCLOOCTATETRAENE)DIMOLYBDENUM AND TRIS(CYCLOOCTATETRAENE)DITUNGSTEN [J].

COTTON, FA ;

KOCH, SA ;

SCHULTZ, AJ ;

WILLIAMS, JM .

INORGANIC CHEMISTRY, 1978, 17 (08) :2093-2098

← 1 2 3 4 →