Synthesis and Structure of a Stabilized 10-Membered Cyclic Enediyne
Wolfgang Pitsch; Michael Klein; Manfred Zabel; Burkhard König; Journal of Organic Chemistry 67 (2002) 6805–6807; doi:10.1021/jo025998q

data_4022251
_publ_section_title
;
 Synthesis and Structure of a Stabilized 10-Membered Cyclic Enediyne
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6805
_journal_page_last               6807
_journal_paper_doi               10.1021/jo025998q
_journal_volume                  67
_journal_year                    2002
_chemical_compound_source        'see text'
_chemical_formula_moiety         'C13 H14 O2'
_chemical_formula_sum            'C13 H14 O2'
_chemical_formula_weight         202.24
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2bc 2ac'
_symmetry_space_group_name_H-M   'P c a b'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   7.9339(5)
_cell_length_b                   15.9909(11)
_cell_length_c                   17.3091(14)
_cell_measurement_reflns_used    7998
_cell_measurement_temperature    173(1)
_cell_measurement_theta_max      25.5
_cell_measurement_theta_min      2.5
_cell_volume                     2196.0(3)
_computing_cell_refinement       'STOE (1998)'
_computing_data_collection       'STOE (1998)'
_computing_data_reduction        'STOE (1998)'
_computing_molecular_graphics    'PLATON (Spek, 1990)'
_computing_publication_material  'PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-97 (Altomare, 1993)'
_diffrn_ambient_temperature      173(1)
_diffrn_measured_fraction_theta_full 0.98
_diffrn_measured_fraction_theta_max 0.98
_diffrn_measurement_device_type  'STOE-IPDS diffractometer'
_diffrn_measurement_method       rotation
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0522
_diffrn_reflns_av_sigmaI/netI    0.0268
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            20069
_diffrn_reflns_reduction_process
;
 ?
;
_diffrn_reflns_theta_full        25.81
_diffrn_reflns_theta_max         25.81
_diffrn_reflns_theta_min         2.35
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'colourless, translucent          '
_exptl_crystal_density_diffrn    1.223
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       'platelike          '
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.60
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.208
_refine_diff_density_min         -0.136
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2079
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0465
_refine_ls_R_factor_gt           0.0371
_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^)+(0.0625P)^2^+0.1622P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0949
_refine_ls_wR_factor_ref         0.0989
_reflns_number_gt                1665
_reflns_number_total             2079
_reflns_threshold_expression     I>2\\s(I)
_cod_data_source_file            jo025998q_s3_2.cif
_cod_data_source_block           a080
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_atom_sites_solution_hydrogens' value 'geom ' changed to
'geom' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_atom_sites_solution_primary' value 'direct ' changed to
'direct' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_atom_sites_solution_secondary' value 'difmap ' changed to
'difmap' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'none ' changed to
'none' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_refine_ls_hydrogen_treatment' value 'constr ' changed to
'constr' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_refine_ls_weighting_scheme' value 'calc ' changed to 'calc'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_Hall     '-P 2ac 2ab'
_cod_original_sg_symbol_H-M      'P b c a'
_cod_database_code               4022251