TY - JOUR
T1 - Aryloxide Ligands in the Metathesis of Olefins
T2 - Syntheses of W(OAr)xCl6_xComplexes With X = 2, 3, And 4. Crystal Structures of W(O-2,6-C6H3-i-Pr2)3cl3and W(O-2,6-C6H3Ph2)2Cl4
AU - Quignard, Francoise
AU - Leconte, Michel
AU - Basset, Jean Marie
AU - Hsu, Leh Yeh
AU - Alexander, John J.
AU - Shore, Sheldon G.
PY - 1987/12/1
Y1 - 1987/12/1
N2 - Syntheses and characterization of three families of aryloxide complexes of W(VI), which are useful precursors for metathesis of olefins, are reported: W(OAr)x(Cl)6-x(x = 2, 3, 4). The structures of Cl3W(O-2,6-C6H3-i-Pr2)3and Cl4W(O-2,6-C6H3Ph2)2are described. Both complexes have slightly distorted octahedral coordination spheres. For the structure of Cl3W(O-2,6-C6H3-i-Pr2)3, the chlorines occupy the meridional sites, while in the case of Cl4W(0-2,6-C6H3Ph2)2, the OC6H3Ph2groups are cis to each other. Crystal data for Cl3W(O-2,6-C6H3-i-Pr2)3: space group P21/n, monoclinic, a = 13.446 (2) Å, b = 17.824 (4) Å, c = 16.289 (3) Å, β = 99.55 (1)°, V = 3851 Å3, mol wt 882.02,Pcalcd=1.418 g cm-3for Z = 4. For Mo Ka 7164 unique reflections were collected at 298 K over the range 4° ≤ 2θ ≤ 50° with 5582 reflections > 3σ-(I) used in the final refinement. RF= 0.023 and RwF= 0.031. Crystal data for Cl4W(O-2,6-C6H3Ph2)2.1/2C7H8: space group P1, triclinic, a = 10.547 (3) Å, b = 13.669 (1) Å, c = 14.632 (1) Å, a = 84.89 (2)°, β = 78.34 (1)°, γ = 83.48 (2)°, V = 2062 A3, mol wt 816.26,Pcalcd= 1.317 g cm-3for Z = 2. For Mo Ka 2915 reflections were collected at 298 K over the range 4° ≤2θ ≤ 40° with 2588 reflections ≥3σ(I) used in the final refinement. Rf= 0.058 and Rwf= 0.094.
AB - Syntheses and characterization of three families of aryloxide complexes of W(VI), which are useful precursors for metathesis of olefins, are reported: W(OAr)x(Cl)6-x(x = 2, 3, 4). The structures of Cl3W(O-2,6-C6H3-i-Pr2)3and Cl4W(O-2,6-C6H3Ph2)2are described. Both complexes have slightly distorted octahedral coordination spheres. For the structure of Cl3W(O-2,6-C6H3-i-Pr2)3, the chlorines occupy the meridional sites, while in the case of Cl4W(0-2,6-C6H3Ph2)2, the OC6H3Ph2groups are cis to each other. Crystal data for Cl3W(O-2,6-C6H3-i-Pr2)3: space group P21/n, monoclinic, a = 13.446 (2) Å, b = 17.824 (4) Å, c = 16.289 (3) Å, β = 99.55 (1)°, V = 3851 Å3, mol wt 882.02,Pcalcd=1.418 g cm-3for Z = 4. For Mo Ka 7164 unique reflections were collected at 298 K over the range 4° ≤ 2θ ≤ 50° with 5582 reflections > 3σ-(I) used in the final refinement. RF= 0.023 and RwF= 0.031. Crystal data for Cl4W(O-2,6-C6H3Ph2)2.1/2C7H8: space group P1, triclinic, a = 10.547 (3) Å, b = 13.669 (1) Å, c = 14.632 (1) Å, a = 84.89 (2)°, β = 78.34 (1)°, γ = 83.48 (2)°, V = 2062 A3, mol wt 816.26,Pcalcd= 1.317 g cm-3for Z = 2. For Mo Ka 2915 reflections were collected at 298 K over the range 4° ≤2θ ≤ 40° with 2588 reflections ≥3σ(I) used in the final refinement. Rf= 0.058 and Rwf= 0.094.
UR - http://www.scopus.com/inward/record.url?scp=0000521039&partnerID=8YFLogxK
U2 - 10.1021/ic00272a026
DO - 10.1021/ic00272a026
M3 - Article
AN - SCOPUS:0000521039
SN - 0020-1669
VL - 26
SP - 4272
EP - 4277
JO - Inorganic chemistry
JF - Inorganic chemistry
IS - 25
ER -