Homonuclear bond activation using a stable N,N′-diamidocarbene
Wiggins, Kelly M.; Moerdyk, Jonathan P.; Bielawski, Christopher W.; Chemical Science 3 (2012) 2986–; doi:10.1039/c2sc20639k

data_1515113
_publ_section_title
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 Homonuclear bond activation using a stable N,N&#x2032;-diamidocarbene
;
_journal_issue                   10
_journal_name_full               'Chemical Science'
_journal_page_first              2986
_journal_paper_doi               10.1039/c2sc20639k
_journal_volume                  3
_journal_year                    2012
_chemical_formula_moiety         'C24 H28 N2 O3'
_chemical_formula_sum            'C24 H28 N2 O3'
_chemical_formula_weight         392.48
_chemical_name_common            DACUrea
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                91.431(9)
_cell_angle_beta                 103.924(9)
_cell_angle_gamma                98.836(7)
_cell_formula_units_Z            2
_cell_length_a                   8.005(6)
_cell_length_b                   8.772(6)
_cell_length_c                   16.048(11)
_cell_measurement_temperature    150(2)
_cell_volume                     1078.5(13)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0380
_diffrn_reflns_av_sigmaI/netI    0.0316
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            15923
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.31
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.209
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             420
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.563
_refine_diff_density_min         -0.675
_refine_diff_density_rms         0.210
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         3779
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0776
_refine_ls_R_factor_gt           0.0528
_refine_ls_shift/su_max          0.094
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1174P)^2^+0.5338P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1531
_refine_ls_wR_factor_ref         0.1877
_reflns_number_gt                2980
_reflns_number_total             3779
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2sc20639k.txt
_cod_data_source_block           DACUrea
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_cell_volume        1078.6(13)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1515113