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_1513791
_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 O3 Os P3 S,Cl,2.5(CH2ClCH2Cl),H2O'
_chemical_formula_sum            'C70 H66 Cl6 O4 Os P3 S'
_chemical_formula_weight         1499.10
_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                 95.780(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   23.9712(5)
_cell_length_b                   10.7966(3)
_cell_length_c                   25.4621(5)
_cell_measurement_reflns_used    14740
_cell_measurement_temperature    142.9
_cell_measurement_theta_max      29.0490
_cell_measurement_theta_min      2.7148
_cell_volume                     6556.3(3)
_computing_cell_refinement       'CrysAlis RED (Oxford Diffraction, 2008)'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2008)'
_computing_data_reduction        'CrysAlis RED (Oxford Diffraction, 2008)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      142.9
_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  0.0401
_diffrn_reflns_av_sigmaI/netI    0.0516
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            29791
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.72
_exptl_absorpt_coefficient_mu    2.343
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.71022
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.519
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       bolck
_exptl_crystal_F_000             3028
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.252
_refine_diff_density_min         -1.205
_refine_diff_density_rms         0.096
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     793
_refine_ls_number_reflns         11526
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0439
_refine_ls_R_factor_gt           0.0325
_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^)+(0.0292P)^2^+1.0808P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0668
_refine_ls_wR_factor_ref         0.0705
_reflns_number_gt                9772
_reflns_number_total             11526
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ncomms4265-s3.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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               1513791