Synthesis of phenazine derivatives for use as precursors to electrochemically generated bases.
Mateo Alonso, A.; Horcajada, Roberto; Groombridge, Helen J.; Chudasama Née Mandalia, Reshma; Motevalli, Majid; Utley, James H. P.; Wyatt, Peter B.; Organic & biomolecular chemistry 3 (2005) 2832–2841; doi:10.1039/b506295k

data_7150212
_publ_section_title
;
 Synthesis of phenazine derivatives for use as precursors to
 electrochemically generated bases.
;
_journal_issue                   15
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              2832
_journal_page_last               2841
_journal_paper_doi               10.1039/b506295k
_journal_volume                  3
_journal_year                    2005
_chemical_formula_sum            'C22 H26 N2 O2'
_chemical_formula_weight         350.45
_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                 90.01(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.854(12)
_cell_length_b                   10.992(5)
_cell_length_c                   7.770(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    160(2)
_cell_measurement_theta_max      12.4115
_cell_measurement_theta_min      9.3215
_cell_volume                     1867(3)
_computing_cell_refinement       'CAD4 /PC (Enraf Nonius, 1994)'
_computing_data_collection       'CAD4 /PC (Enraf Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      160(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Enraf Nonius CAD4'
_diffrn_measurement_method       'non-profiled omega/2theta scans'
_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  0.0227
_diffrn_reflns_av_sigmaI/netI    0.0639
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -3
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3598
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.86
_diffrn_standards_decay_%        2
_diffrn_standards_interval_count 100
_diffrn_standards_interval_time  60
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9842
_exptl_absorpt_correction_T_min  0.9611
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       prism
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.033
_refine_diff_density_min         -0.551
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         3265
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.1357
_refine_ls_R_factor_gt           0.0660
_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^)+(0.0752P)^2^+2.6177P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1564
_refine_ls_wR_factor_ref         0.1887
_reflns_number_gt                1953
_reflns_number_total             3265
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b506295k.txt
_cod_data_source_block           ama95-14
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_H-M      P21/a
_cod_database_code               7150212