Photochemistry of Chromium Arene Tricarbonyl Complexes with Tethered Pyridinyl and Propenyl Groups: Investigations of the Effect of Ring Size on Chelate Formation, Structure, and Linkage Isomerization
Duke, Charles B.; Letterman, Roger G.; Johnson, Jermaine O.; Barr, James W.; Hu, Songnan; Ross, Charles R.; Webster, Charles Edwin; Burkey, Theodore J.; Organometallics 33 (2014) 485–; doi:10.1021/om400928k

data_4082340
_publ_section_title
;
 Photochemistry of Chromium Arene Tricarbonyl Complexes with Tethered
 Pyridinyl and Propenyl Groups: Investigations of the Effect of Ring Size
 on Chelate Formation, Structure, and Linkage Isomerization
;
_journal_issue                   2
_journal_name_full               Organometallics
_journal_page_first              485
_journal_paper_doi               10.1021/om400928k
_journal_volume                  33
_journal_year                    2014
_chemical_formula_sum            'C15 H13 Cr N O2'
_chemical_formula_weight         291.26
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 112.072(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.6721(8)
_cell_length_b                   7.9582(5)
_cell_length_c                   13.3139(8)
_cell_measurement_temperature    173(2)
_cell_volume                     1244.27(14)
_computing_cell_refinement       'SMART, Bruker (2000)'
_computing_data_collection       'SMART, Bruker (2000)'
_computing_data_reduction        'XPREP, Bruker (2000)'
_computing_molecular_graphics    'Raster3D (Merritt, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXs-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.921
_diffrn_measured_fraction_theta_max 0.921
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_radiation_monochromator  'osmic mirrors'
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0318
_diffrn_reflns_av_sigmaI/netI    0.0298
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8435
_diffrn_reflns_theta_full        67.37
_diffrn_reflns_theta_max         67.37
_diffrn_reflns_theta_min         3.58
_exptl_absorpt_coefficient_mu    7.535
_exptl_absorpt_correction_T_max  0.7044
_exptl_absorpt_correction_T_min  0.5504
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2000)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.555
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.09
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.624
_refine_diff_density_min         -0.388
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.238
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2065
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.238
_refine_ls_R_factor_all          0.0550
_refine_ls_R_factor_gt           0.0442
_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^)+(0.0725P)^2^+1.3250P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1315
_refine_ls_wR_factor_ref         0.1374
_reflns_number_gt                1740
_reflns_number_total             2065
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            om400928k_si_002.cif
_cod_data_source_block           crpy6_ct
_cod_original_cell_volume        1244.27(13)
_cod_original_sg_symbol_H-M      'P 21/a'
_cod_database_code               4082340