Furanodendralenes.
Fallon, Thomas; Willis, Anthony C; Paddon-Row, Michael N; Sherburn, Michael S; The Journal of organic chemistry 79 (2014) 3185–3193; doi:10.1021/jo500458y

data_4029222
_publ_section_title
;
 Furanodendralenes.
;
_journal_issue                   7
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              3185
_journal_page_last               3193
_journal_paper_doi               10.1021/jo500458y
_journal_volume                  79
_journal_year                    2014
_chemical_compound_source        local
_chemical_formula_moiety         'C13 H13 N O3'
_chemical_formula_sum            'C13 H13 N O3'
_chemical_formula_weight         231.25
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             06-09-14
_audit_creation_method           CRYSTALS_ver_12.18
_audit_update_record
;
2006-09-14 - Report on  C13 H13 N O3
             by Anthony C. Willis
             for Thomas Fallon and Mick Sherburn
2006-09-14 - passes checkcif tests with minor warnings
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.9348(3)
_cell_length_b                   6.0568(2)
_cell_length_c                   15.6499(5)
_cell_measurement_reflns_used    7410
_cell_measurement_temperature    200
_cell_measurement_theta_max      28
_cell_measurement_theta_min      3
_cell_volume                     1131.28(6)
_computing_cell_refinement       'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius BV, 1997)'
_computing_data_reduction        'Denzo/Scalepack '
_computing_molecular_graphics
;
ORTEP-II (Johnson 1976) in teXsan (MSC, 1992-1997)
;
_computing_publication_material  'CRYSTALS '
_computing_structure_refinement  'CRYSTALS (Watkin et al 2003)'
_computing_structure_solution    'SIR92 (Altomare et al, 1994)'
_diffrn_ambient_temperature      200
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       ' \f and \w scans with CCD '
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.034
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            13467
_diffrn_reflns_theta_full        27.5
_diffrn_reflns_theta_max         27.503
_diffrn_reflns_theta_min         2.603
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.943
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.358
_exptl_crystal_density_meas      ?
_exptl_crystal_description       prism
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.16
_refine_diff_density_min         -0.10
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.1834
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         1202
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0300
_refine_ls_R_factor_gt           0.0256
_refine_ls_shift/su_max          0.0062
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, 
 (Carruthers & Watkin, 1979, Prince, 1982)  
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 0.515 0.240 0.327 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0325
_refine_ls_wR_factor_gt          0.0296
_refine_ls_wR_factor_ref         0.0296
_reflns_limit_h_max              15
_reflns_limit_h_min              0
_reflns_limit_k_max              7
_reflns_limit_k_min              0
_reflns_limit_l_max              20
_reflns_limit_l_min              0
_reflns_number_gt                1202
_reflns_number_total             1334
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   2.83
_oxford_diffrn_Wilson_scale      1.06
_oxford_refine_ls_scale          0.994(2)
_oxford_structure_analysis_title 'scalepacked and transformed'
_cod_data_source_file            jo500458y_si_006.cif
_cod_data_source_block           she0622
_cod_depositor_comments
;The following automatic conversions were performed:

'_symmetry_cell_setting'
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'orthorhombic' according
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 named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion
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Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius  Adding full
 bibliography for /tmp/tmp-cod-update-bibliographies-17276/cifs/4029222.cif.

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P n a 21 '
_cod_database_code               4029222