COORDINATION IN CYCLOPENTADIENYL COMPOUNDS .3. CRYSTAL-STRUCTURE OF [YB(C5H4CH3)2NH2]2

被引：17

作者：

HAMMEL, A ^{[1
]}

WEIDLEIN, J ^{[1
]}

机构：

[1] UNIV STUTTGART,INST ANORGAN CHEM,PFAFFENWALDRING 55,W-7000 STUTTGART 80,GERMANY

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1990年 / 388卷 / 1-2期

关键词：

D O I：

10.1016/0022-328X(90)85349-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of methylcyclopentadiene with ytterbium in liquid ammonia yields bis(η5-methylcyclopentadienyl)ytterbiumamide, [Yb(mecp)2NH2]2 as a byproduct. [Yb(mecp)2NH2]2 crystallizes in the orthorhombic space group Pbca with a 998.4(2), b 1876.7(3), c 1193.(2) pm; ρcalc 2.064 g/cm3 for Z = 4. Every ytterbium atom is pseudo-tetrahedrally coordinated by the centres Z of two methylcyclopentadienyl rings and two bridging N-atoms. The angle between the plane containing 3he Yb-atoms and the ring centres and the Yb2N2 ring plane is approximately 90°. X-ray crystallography of the compounds formulated as Mcp2X have revealed the existence of monomers, dimers, trimers, tetramers and linear polymers. Our model of the "Cyclopentadienylkugel" can be used to reliably predict whether a compound will be monomeric or associated (n ≥ 2). Likewise, if n = 2, the model successfully predicts whether the dimer is of the type cp2M(μ-X)2Mcp2 (type A) or cp2M(μ-X)-MXcp2 (type B). In the lanthanide and actinide series (M = Ln, Ac) it is possible to predict the important structural features of these compounds. © 1989.

引用

页码：75 / 87

页数：13

共 34 条

[1] DIMETHYLINDIUM DIALKYLAMIDES AND ORGANYLPHOSPHIDES, X-RAY CRYSTAL-STRUCTURE OF (ME2INN(TERT-BU)2)2, (ME2INN(ISO-PR)2)2, (ME2INN(SIME3)2)2 AND (ME2INP(TERT-BU)2)2 [J].

AITCHISON, KA ;

BACKERDIRKS, JDJ ;

BRADLEY, DC ;

FAKTOR, MM ;

FRIGO, DM ;

HURSTHOUSE, MB ;

HUSSAIN, B ;

SHORT, RL .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1989, 366 (1-2) :11-23

[2] SYNTHESIS AND CRYSTALLOGRAPHIC CHARACTERIZATION OF A DIMERIC ALKYNIDE-BRIDGED ORGANOLANTHANIDE - [(C5H5)2ERC=CC(CH3)3]2 [J].

ATWOOD, JL ;

HUNTER, WE ;

WAYDA, AL ;

EVANS, WJ .

INORGANIC CHEMISTRY, 1981, 20 (12) :4115-4119

[3] CRYSTAL-STRUCTURE OF DI-MU-CHLORO-BIS[DI-ETA-CYCLOPENTADIENYLSCANDIUM(III)] [J].

ATWOOD, JL ;

SMITH, KD .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1973, (22) :2487-2490

[4] STRUCTURAL CHARACTERIZATION OF A CHLORIDE-BRIDGED LANTHANIDE CYCLOPENTADIENYL DIMER, [YB(C5H4CH3)2CL]2 [J].

BAKER, EC ;

BROWN, LD ;

RAYMOND, KN .

INORGANIC CHEMISTRY, 1975, 14 (06) :1376-1379

[5] SYNTHETIC, STRUCTURAL, AND MAGNETIC-PROPERTIES OF PYRAZINE-BRIDGED LANTHANIDE ORGANOMETALLIC COMPLEX MU-PYRAZINE-BIS[TRIS(CYCLOPENTADIENIDE)YTTERBIUM(III)], (C5H5)3YB(NC4H4)YB(C5H5)3 [J].

BAKER, EC ;

RAYMOND, KN .

INORGANIC CHEMISTRY, 1977, 16 (11) :2710-2714

[6] A COMPLETE SERIES OF URANOCENE(III) HALIDES [(UCP''2X)N] [X = F, CL, BR, OR I, CP'' = ETA-C5H3(SIME3)2] - SINGLE-CRYSTAL X-RAY STRUCTURE DETERMINATIONS OF THE CHLORIDE AND BROMIDE (N = 2 FOR X- = MU-CL- OR MU-BR-) [J].

BLAKE, PC ;

LAPPERT, MF ;

TAYLOR, RG ;

ATWOOD, JL ;

HUNTER, WE ;

ZHANG, HM .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1986, (17) :1394-1395

[7] RAMAN SPECTRA OF METHYLDIBORANES .2. MONOMETHYLDIBORANE AND TRIMETHYLDIBORANE, AND CHARACTERISTIC FREQUENCIES OF METHYLDIBORANES [J].

CARPENTER, JH ;

JONES, WJ ;

JOTHAM, RW ;

LONG, LH .

SPECTROCHIMICA ACTA PART A-MOLECULAR SPECTROSCOPY, 1971, A 27 (09) :1721-+

[8] X-RAY SCATTERING FACTORS COMPUTED FROM NUMERICAL HARTREE-FOCK WAVE FUNCTIONS [J].

CROMER, DT ;

MANN, JB .

ACTA CRYSTALLOGRAPHICA SECTION A-CRYSTAL PHYSICS DIFFRACTION THEORETICAL AND GENERAL CRYSTALLOGRAPHY, 1968, A 24 :321-&

[9] 3 COORDINATION IN METAL-COMPLEXES [J].

ELLER, PG ;

BRADLEY, DC ;

HURSTHOUSE, MB ;

MEEK, DW .

COORDINATION CHEMISTRY REVIEWS, 1977, 24 (01) :1-95

[10] SYNTHESIS OF ORGANOSAMARIUM COMPLEXES CONTAINING SM-C-BOND AND SM-P-BOND - CRYSTALLOGRAPHIC CHARACTERIZATION OF [(CH3C5H4)2SMC=CC(CH3)3]2 [J].

EVANS, WJ ;

BLOOM, I ;

HUNTER, WE ;

ATWOOD, JL .

ORGANOMETALLICS, 1983, 2 (06) :709-714

← 1 2 3 4 →