[6]Saddlequat: a [6]helquat captured on its racemization pathway
Adriaenssens, Louis; Severa, Lukáš; Koval, Dušan; Císařová, Ivana; Belmonte, Marta Martínez; Escudero-Adán, Eduardo C.; Novotná, Pavlína; Sázelová, Petra; Vávra, Jan; Pohl, Radek; Šaman, David; Urbanová, Marie; Kašička, Václav; Teplý, Filip; Chemical Science 2 (2011) 2314–; doi:10.1039/c1sc00468a

data_1515531
_publ_section_title
;
 [6]Saddlequat: a [6]helquat captured on its racemization pathway
;
_journal_issue                   12
_journal_name_full               'Chemical Science'
_journal_page_first              2314
_journal_paper_doi               10.1039/c1sc00468a
_journal_volume                  2
_journal_year                    2011
_chemical_absolute_configuration rm
_chemical_formula_sum            'C63 H55 N2 O17.5'
_chemical_formula_weight         1120.09
_chemical_name_systematic
;
?
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 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                 111.491(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   24.233(16)
_cell_length_b                   11.685(8)
_cell_length_c                   20.507(13)
_cell_measurement_reflns_used    1113
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      19.39
_cell_measurement_theta_min      2.65
_cell_volume                     5403(6)
_computing_cell_refinement       'Bruker APEX2 v2009.1-0'
_computing_data_collection       'Bruker APEX2 v2009.1-0'
_computing_data_reduction        'Bruker SAINT V7.60A'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 0.927
_diffrn_measured_fraction_theta_max 0.927
_diffrn_measurement_device_type  'Kappa 4-axis goniometer bruker-nonius'
_diffrn_measurement_method
;
Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support
'magnetic support whith 10 micron nylon fiber cryoloop'
_diffrn_radiation_monochromator  'Multilayer Montel 200 mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1296
_diffrn_reflns_av_sigmaI/netI    0.1651
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            15786
_diffrn_reflns_theta_full        25.55
_diffrn_reflns_theta_max         25.55
_diffrn_reflns_theta_min         2.65
_diffrn_source                   'rotating anode X-ray tube'
_diffrn_source_current           70
_diffrn_source_power             50
_diffrn_source_size              '3 mm x 0.3 mm fine focus'
_diffrn_source_type              'Bruker-Nonius FR 591'
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.98
_exptl_absorpt_correction_T_min  0.81
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
SADABS Version 2008/1 Bruker-Nonius
Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.377
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2348
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.527
_refine_diff_density_min         -0.302
_refine_diff_density_rms         0.062
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.4(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.998
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     735
_refine_ls_number_reflns         7636
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      0.997
_refine_ls_R_factor_all          0.1507
_refine_ls_R_factor_gt           0.0649
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0500P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1185
_refine_ls_wR_factor_ref         0.1471
_reflns_number_gt                4149
_reflns_number_total             7636
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1sc00468a.txt
_cod_data_source_block           lva03b_0m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_diffrn_measurement_specimen_suppport' tag replaced with
'_diffrn_measurement_specimen_support'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/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      C2
_cod_original_formula_sum        'C63 H55 N2 O17.50'
_cod_database_code               1515531