Planar Möbius aromatic pentalenes incorporating 16 and 18 valence electron osmiums.
Zhu, Congqing; Luo, Ming; Zhu, Qin; Zhu, Jun; Schleyer, Paul V. R.; Wu, Judy I-Chia; Lu, Xin; Xia, Haiping; Nature communications 5 (2014) 3265–; doi:10.1038/ncomms4265

data_1513793
_publ_section_title
;
 Planar M\"obius aromatic pentalenes incorporating 16 and 18 valence
 electron osmiums.
;
_journal_name_full               'Nature communications'
_journal_page_first              3265
_journal_paper_doi               10.1038/ncomms4265
_journal_volume                  5
_journal_year                    2014
_chemical_formula_moiety         'C65 H54 O5 Os P3,Cl, CH2Cl2, H2O'
_chemical_formula_sum            'C66 H58 Cl3 O5 Os P3'
_chemical_formula_weight         1320.58
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.0021(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.6439(2)
_cell_length_b                   21.0196(4)
_cell_length_c                   21.9093(4)
_cell_measurement_reflns_used    43180
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      3.04
_cell_volume                     5790.91(18)
_computing_cell_refinement       RAPID-AUTO
_computing_data_collection       'RAPID-AUTO (Rigaku Corporation, 1998)'
_computing_data_reduction
'CrystalStructure (Rigaku/MSC and Rigaku Corporation, 2002)'
_computing_molecular_graphics    'XP (Sheldrick, 1993)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0456
_diffrn_reflns_av_sigmaI/netI    0.0355
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            44458
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.04
_exptl_absorpt_coefficient_mu    2.474
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.5079
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.515
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2664
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.441
_refine_diff_density_min         -1.604
_refine_diff_density_rms         0.120
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     721
_refine_ls_number_reflns         10163
_refine_ls_number_restraints     16
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0401
_refine_ls_R_factor_gt           0.0338
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0415P)^2^+16.1926P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0855
_refine_ls_wR_factor_ref         0.0881
_reflns_number_gt                9174
_reflns_number_total             10163
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ncomms4265-s4.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to
/usr/data/users/saulius/automatic-downloads/current/Nature/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1513793