Unexpected regiospecific Michael addition Product: Synthesis of 5,6-dihydrobenzo[1,7] phenanthroline
Roopan, Selvaraj Mohana; Bharathi, Annadurai; Palaniraja, Jeyakannu; Anand, K.; Robert, Gengan; RSC Adv.  (2015) –; doi:10.1039/C4RA16640J

data_7220174
_publ_section_title
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 Unexpected regiospecific Michael addition Product: Synthesis of
 5,6-dihydrobenzo[1,7] phenanthroline
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C4RA16640J
_journal_year                    2015
_chemical_formula_sum            'C30 H22 Cl2 N2 O'
_chemical_formula_weight         497.40
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-02-25 deposited with the CCDC.
2015-04-14 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 98.4130(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.3697(2)
_cell_length_b                   28.8078(5)
_cell_length_c                   15.2132(3)
_cell_measurement_reflns_used    6372
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.561
_cell_measurement_theta_min      2.515
_cell_volume                     4929.25(16)
_computing_cell_refinement       'APEX2/SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2004)'
_computing_molecular_graphics
'ORTEP3 (Farrugia, 1997) and Mercury (Bruno et al., 2002)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altornare et al., 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker axs kappa apex2 CCD DIffractometer'
_diffrn_measurement_method       '\w and \f scan'
_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  0.0351
_diffrn_reflns_av_sigmaI/netI    0.0276
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            45391
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.21
_exptl_absorpt_coefficient_mu    0.290
_exptl_absorpt_correction_T_max  0.9568
_exptl_absorpt_correction_T_min  0.9021
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.340
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2064
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.257
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.034
_refine_ls_extinction_coef       0.0024(2)
_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   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     632
_refine_ls_number_reflns         8675
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0599
_refine_ls_R_factor_gt           0.0379
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0415P)^2^+1.7678P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0888
_refine_ls_wR_factor_ref         0.1025
_reflns_number_gt                6373
_reflns_number_total             8675
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra16640j2.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 3271 2015-04-21 07:52:19Z andrius 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7220174