Reactivity of (C sub 5 Me sub 5 ) sub 2 SM with aryl-substituted alkenes: Synthesis and structure of a bimetallic styrene complex that contains an. eta. sup 2 -arene lanthanide interaction
Journal Article
·
· Journal of the American Chemical Society; (USA)
- Univ. of California, Irvine (USA)
(C{sub 5}Me{sub 5}){sub 2}Sm (1) and (C{sub 5}Me{sub 5}){sub 2}Sm(THF){sub 2} (2) isomerize cis-stilbene to trans-stilbene. The stoichiometric reaction of 1 with stilbene forms ((C{sub 5}Me{sub 5}){sub 2}Sm){sub 2}({mu}-{eta}{sup 2}-{eta}{sup 4}-PhCHCHPh) (3). 1 reacts with styrene to form ((C{sub 5}Me{sub 5}){sub 2}Sm){sub 2}({mu}-{eta}{sup 2}-{eta}{sup 4}-CH{sub 2}CHPh) (4). In both 3 and 4, the two (C{sub 5}Me{sub 5}){sub 2}Sm units coordinate on opposite sides of the alkene bond such that the Sm-Sm vector bisects the bond at right angles. In each complex, phenyl carbon atoms are oriented to interact with one of the samarium centers. In 4, the Sm-C(C{sub 5}Me{sub 5}) distances range from 2.678 (18) to 2.847 (18) {angstrom}, the Sm-C(alkene) distances range from 2.537 (15) to 2.732 (15) {angstrom}, and two carbon atoms of the phenyl ring are positioned 2.772 (17) and 2.850 (16) {angstrom} from one samarium atom. 3 crystallizes from hexane in space group P2{sub 1}2{sub 1}2 with a = 12.156 (6) {angstrom}, b = 14.405 (9) {angstrom}, c = 15.628 (2) {angstrom}, and V = 2737 (2) {angstrom}{sup 3} with Z = 2 for D{sub calcd} = 1.24 g cm{sup {minus}3}. 4 crystallizes from hexane in space group Pbca with a = 21.169 (4) {angstrom}, b = 17.663 (3) {angstrom}, c = 23.713 (5) {angstrom}, and V = 8866 (3) {angstrom}{sup 3} with Z = 8 for D{sub calcd} = 1.417 g cm{sup {minus}3}. Least-squares refinement of the model based on 3134 observed reflections converged to a final R{sub F} = 6.2%.
- OSTI ID:
- 6660345
- Journal Information:
- Journal of the American Chemical Society; (USA), Journal Name: Journal of the American Chemical Society; (USA) Vol. 112:1; ISSN 0002-7863; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis and reactivity of the cationic organosamarium(III) complex ((C sub 5 Me sub 5 ) sub 2 Sm(THF) sub 2 )(BPh sub 4 ), including the synthesis and structure of a metallocene with an alkoxy-tethered C sub 5 Me sub 5 ring, (C sub 5 Me sub 5 ) sub 2 Sm(O(CH sub 2 ) sub 4 C sub 5 Me sub 5 )(THF)
Intramolecular C-H bond activation promoted by the d[sup 0] [([eta][sup 5]-C[sub 5]Me[sub 5])W([double bond]NR)[sub 2]][sup +] functional group
Synthesis and characterization of the samarium-cobalt complexes (C/sub 5/Me/sub 5/)/sub 2/(THE)SmCo(CO)/sub 4/ and (SmI/sub 2/(THF)/sub 5/)(Co(CO)/sub 4/): X-ray crystal structure of a seven-coordinate samarium(III) cation complex
Journal Article
·
Sun Jul 01 00:00:00 EDT 1990
· Organometallics; (USA)
·
OSTI ID:6428971
Intramolecular C-H bond activation promoted by the d[sup 0] [([eta][sup 5]-C[sub 5]Me[sub 5])W([double bond]NR)[sub 2]][sup +] functional group
Journal Article
·
Thu Dec 31 23:00:00 EST 1992
· Organometallics; (United States)
·
OSTI ID:6567473
Synthesis and characterization of the samarium-cobalt complexes (C/sub 5/Me/sub 5/)/sub 2/(THE)SmCo(CO)/sub 4/ and (SmI/sub 2/(THF)/sub 5/)(Co(CO)/sub 4/): X-ray crystal structure of a seven-coordinate samarium(III) cation complex
Journal Article
·
Tue Dec 17 23:00:00 EST 1985
· Inorg. Chem.; (United States)
·
OSTI ID:5956760
Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKENES
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
DIFFRACTION
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
RARE EARTH COMPLEXES
REACTIVITY
SAMARIUM COMPLEXES
SCATTERING
X-RAY DIFFRACTION
360102* -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKENES
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
DIFFRACTION
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
RARE EARTH COMPLEXES
REACTIVITY
SAMARIUM COMPLEXES
SCATTERING
X-RAY DIFFRACTION