#------------------------------------------------------------------------------ #$Date: 2010-01-30 13:59:17 +0000 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: svn://www.crystallography.net/cod/cif/2/2011607.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_2011607 _journal_name_full 'Acta Crystallographica, Section C' _journal_year 2000 _journal_volume 56 _journal_page_first 1468 _journal_page_last 1470 _publ_section_title ; The surprising sp rotameric structure of 9-methyl-9-pivaloylfluorene ; loop_ _publ_author_name 'Meyers, Cal Y.' 'Lutfi, Hisham G.' 'Varol, Pninit' 'Hou, Yuqing' 'Robinson, Paul D.' _chemical_formula_moiety ' C19 H20 O1' _chemical_formula_sum 'C19 H20 O' _chemical_formula_weight 264.35 _chemical_melting_point 430.5-431.5 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M 'C m c 21' _symmetry_space_group_name_Hall 'C 2c -2' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, y, z' '-x, -y, z+1/2' 'x, -y, z+1/2' 'x+1/2, y+1/2, z' '-x+1/2, y+1/2, z' '-x+1/2, -y+1/2, z+1/2' 'x+1/2, -y+1/2, z+1/2' _cell_length_a 13.908(2) _cell_length_b 15.3513(18) _cell_length_c 7.1860(6) _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_volume 1534.3(3) _cell_formula_units_Z 4 _cell_measurement_temperature 296 _exptl_crystal_density_diffrn 1.144 _diffrn_ambient_temperature 296 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol O1 1.0000 .8478(2) .6436(5) .0886(13) Uani d S 1 . . O C1 .8178(2) .67810(19) .4404(5) .0664(9) Uani d . 1 . . C C2 .7542(2) .6318(3) .3297(8) .0826(11) Uani d . 1 . . C C3 .7858(3) .5753(2) .1967(6) .0781(11) Uani d . 1 . . C C4 .8814(3) .56247(18) .1667(5) .0649(8) Uani d . 1 . . C C4a .94769(19) .60772(14) .2745(3) .0467(6) Uani d . 1 . . C C9 1.0000 .7067(2) .5121(5) .0440(8) Uani d S 1 . . C C9a .91558(19) .66596(15) .4107(4) .0463(6) Uani d . 1 . . C C10 1.0000 .8074(2) .5015(5) .0480(9) Uani d S 1 . . C C11 1.0000 .8595(2) .3169(6) .0479(8) Uani d S 1 . . C C12 1.0000 .8083(3) .1383(7) .0763(14) Uani d S 1 . . C C13 .9101(4) .9174(3) .3204(7) .1076(15) Uani d . 1 . . C C14 1.0000 .6788(3) .7193(6) .0649(11) Uani d S 1 . . C H1 .7957 .7161 .5316 .080 Uiso calc R 1 . . H H2 .6884 .6394 .3466 .099 Uiso calc R 1 . . H H3 .7412 .5450 .1251 .094 Uiso calc R 1 . . H H4 .9021 .5239 .0753 .078 Uiso calc R 1 . . H H12a 1.0000 .8476 .0313 .114 Uiso d S 1 . . H H12b .9441 .7716 .1308 .114 Uiso d . 1 . . H H13a .9060 .9496 .2061 .161 Uiso calc R 1 . . H H13b .9142 .9572 .4231 .161 Uiso calc R 1 . . H H13c .8539 .8816 .3341 .161 Uiso calc R 1 . . H H14a 1.0000 .6164 .7241 .097 Uiso d S 1 . . H H14b .9414 .6976 .7742 .097 Uiso d . 1 . . H loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 O1 .177(4) .0474(15) .0419(16) .000 .000 -.0118(14) C1 .0621(16) .0650(16) .072(2) -.0028(14) .0138(16) .0021(18) C2 .0560(15) .086(2) .106(3) -.0162(16) .001(2) .016(3) C3 .074(2) .074(2) .086(3) -.0242(16) -.019(2) .006(2) C4 .093(2) .0470(13) .0546(17) -.0134(13) -.0135(17) -.0016(13) C4a .0662(14) .0354(10) .0386(11) -.0064(10) -.0024(12) .0028(10) C9 .056(2) .0421(15) .0335(16) .000 .000 -.0003(15) C9a .0600(14) .0397(10) .0392(11) -.0039(10) .0031(13) .0023(10) C10 .065(2) .0432(17) .0353(16) .000 .000 -.0030(15) C11 .066(2) .0384(15) .0397(17) .000 .000 .0026(15) C12 .134(4) .057(2) .0380(19) .000 .000 .005(2) C13 .122(3) .122(3) .079(3) .057(3) .013(3) .018(3) C14 .105(3) .052(2) .0375(19) .000 .000 .0038(17) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag O1 C10 . 1.195(5) yes C1 C2 . 1.386(5) no C1 C9a . 1.389(4) no C2 C3 . 1.363(6) no C3 C4 . 1.362(5) no C4 C4a . 1.390(4) no C4a C9a . 1.399(4) no C4a C4a 2_755 1.455(5) no C9 C9a . 1.517(3) no C9 C10 . 1.547(5) no C9 C14 . 1.549(5) no C10 C11 . 1.549(5) no C11 C12 . 1.506(6) no C11 C13 . 1.534(4) no _cod_database_code 2011607