caa a22 4500 463184815 CHVBK 20180406164849.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10870-007-9194-9 doi (NATIONALLICENCE)springer-10.1007/s10870-007-9194-9 Crystal Structures of Diphosphinated Chromium Fischer Amino Carbenes [Elektronische Daten] [Eric Reinheimer, Katherine Kantardjieff, Xiang Ouyang, Steven Herron, Tiffany Lu, Joe Casalnuovo] The crystal structures of four new diphosphinated chromium Fischer amino carbenes with the compositions fac-[(P-P)(CO)3Cr=C(NR2′)(R)] (R=Me, NR2′=pyrrolidino, P-P=dppe, 1; R=Me, NR2′=pyrrolidino, P-P=dppp, 2; R=Me, R′=Me, P-P=dppe, 3; R=Me, R′=Me, P-P=dppp, 4) have been determined at 243K. Compound 1 crystallizes in the monoclinic system, space group P21 /n with a=12.1597(11)Å, b=20.1556(17)Å, c=14.0557(12)Å, β=114.163(3)°, V=3143.0(5)Å3, and Z=4. Compound 2 crystallizes in the triclinic system, space group P−1 with a=7.4424(3)Å, b=10.8830(5)Å, c=20.6040(9)Å, α=100.9880(10)°, β=91.7650(10)°, γ=97.6610(10)°, V=1620.90(12)Å3, and Z=2. Compound 3 crystallizes in the monoclinic system as a mono-solvate of d5-pyridine, space group P21 /c with a=11.485(2) Å, b=22.825(5)Å, c=14.092(3)Å, β=108.53(3)°, V=3502.7(12)Å3, and Z=4. Compound 4 crystallizes in the orthorhombic system, space group P2 1 2 1 2 1 with a=8.359(3)Å, b=15.364(6)Å, c=23.784(9)Å, V=3055(2)Å3, and Z=4. Steric repulsions with the diphosphine ligand favor a conformation with the amino moiety directed away from the diphosphine backbone in 1-4. Springer Science+Business Media, LLC, 2007 Fischer carbenes nationallicence Diphosphine nationallicence X-ray structure nationallicence dppe nationallicence dppp nationallicence Conformation nationallicence Reinheimer Eric Department of Chemistry, Texas A&M University, 77842, College Station, TX, USA aut Kantardjieff Katherine W.M. Keck Foundation Center for Molecular Structure, California State University, 800 N. State College Blvd, 92834, Fullerton, CA, USA aut Ouyang Xiang W.M. Keck Foundation Center for Molecular Structure, California State University, 800 N. State College Blvd, 92834, Fullerton, CA, USA aut Herron Steven Department of Chemistry and Biochemistry, Brigham Young University, 84602, Provo, UT, USA aut Lu Tiffany Department of Chemistry, California State Polytechnic University, 3801 West Temple Avenue, 91768, Pomona, CA, USA aut Casalnuovo Joe Department of Chemistry, California State Polytechnic University, 3801 West Temple Avenue, 91768, Pomona, CA, USA aut Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/8(2007-08-01), 507-515 1074-1542 37:8<507 2007 37 10870 https://doi.org/10.1007/s10870-007-9194-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10870-007-9194-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Reinheimer Eric Department of Chemistry, Texas A&M University, 77842, College Station, TX, USA aut NATIONALLICENCE 700 1- Kantardjieff Katherine W.M. Keck Foundation Center for Molecular Structure, California State University, 800 N. State College Blvd, 92834, Fullerton, CA, USA aut NATIONALLICENCE 700 1- Ouyang Xiang W.M. Keck Foundation Center for Molecular Structure, California State University, 800 N. State College Blvd, 92834, Fullerton, CA, USA aut NATIONALLICENCE 700 1- Herron Steven Department of Chemistry and Biochemistry, Brigham Young University, 84602, Provo, UT, USA aut NATIONALLICENCE 700 1- Lu Tiffany Department of Chemistry, California State Polytechnic University, 3801 West Temple Avenue, 91768, Pomona, CA, USA aut NATIONALLICENCE 700 1- Casalnuovo Joe Department of Chemistry, California State Polytechnic University, 3801 West Temple Avenue, 91768, Pomona, CA, USA aut NATIONALLICENCE 773 0- Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/8(2007-08-01), 507-515 1074-1542 37:8<507 2007 37 10870 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer