Isolation of C?H?C(?) complexes from the reaction of stable carbenes with hydrocarbons
Filipponi, Silvia; Jones, Jamie N.; Johnson, Jennifer A.; Cowley, Alan H.; Grepioni, Fabrizia; Braga, Dario; Chemical Communications  (2003) 2716–; doi:10.1039/b309168f

data_7113670
_publ_section_title
;
 Isolation of C?H?C(?) complexes from the reaction of stable carbenes with
 hydrocarbons
;
_journal_issue                   21
_journal_name_full               'Chemical Communications'
_journal_page_first              2716
_journal_paper_doi               10.1039/b309168f
_journal_year                    2003
_chemical_formula_sum            'C26 H31 N2'
_chemical_formula_weight         371.53
_chemical_melting_point          '[C21 H25 N2][C5 H5]'
_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                79.99(3)
_cell_angle_beta                 82.41(3)
_cell_angle_gamma                65.62(3)
_cell_formula_units_Z            2
_cell_length_a                   8.3933(17)
_cell_length_b                   8.9198(18)
_cell_length_c                   16.085(3)
_cell_measurement_reflns_used    all
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.58
_cell_measurement_theta_min      2.99
_cell_volume                     1077.7(5)
_computing_cell_refinement       DENZO
_computing_data_collection       'Nonius Collect'
_computing_data_reduction        Scalepack
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'WinGX (Farrugia, 1999)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Kappa CCD'
_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  0.0694
_diffrn_reflns_av_sigmaI/netI    0.1881
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            7217
_diffrn_reflns_theta_full        27.58
_diffrn_reflns_theta_max         27.58
_diffrn_reflns_theta_min         2.99
_exptl_absorpt_coefficient_mu    0.066
_exptl_absorpt_correction_T_max  0.9869
_exptl_absorpt_correction_T_min  0.9869
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.145
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             402
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.726
_refine_diff_density_min         -0.653
_refine_diff_density_rms         0.194
_refine_ls_extinction_coef       0.38(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.862
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     269
_refine_ls_number_reflns         4861
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.862
_refine_ls_R_factor_all          0.3367
_refine_ls_R_factor_gt           0.2405
_refine_ls_shift/su_max          0.027
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.5673
_refine_ls_wR_factor_ref         0.5904
_reflns_number_gt                2287
_reflns_number_total             4861
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b309168f.txt
_cod_data_source_block           p1bar
_cod_depositor_comments
;
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        1077.7(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7113670