Synthesis of biologically important, fluorescence active 5-hydroxy benzo[g]indoles through four-component domino condensations and their fluorescence “Turn-off” sensing of Fe(III) ions
Pramanik, Animesh; Maity, Subhendu; Kundu, Ashis; RSC Adv.  (2015) –; doi:10.1039/C5RA05780A

data_7220703
_publ_section_title
;
 Synthesis of biologically important, fluorescence active 5-hydroxy
 benzo[g]indoles through four-component domino condensations and their
 fluorescence &#x201C;Turn-off&#x201D; sensing of Fe(III) ions
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA05780A
_journal_year                    2015
_chemical_formula_moiety         'C19 H16 N2 O2'
_chemical_formula_sum            'C19 H16 N2 O2'
_chemical_formula_weight         304.34
_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
_audit_update_record
;
2014-09-20 deposited with the CCDC.
2015-06-08 downloaded from the CCDC.
;
_cell_angle_alpha                111.742(3)
_cell_angle_beta                 96.696(3)
_cell_angle_gamma                116.846(2)
_cell_formula_units_Z            2
_cell_length_a                   9.4136(7)
_cell_length_b                   9.9725(7)
_cell_length_c                   10.1281(13)
_cell_measurement_reflns_used    3295
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.34
_cell_measurement_theta_min      2.30
_cell_volume                     740.30(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.841
_diffrn_measured_fraction_theta_max 0.841
_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  0.0285
_diffrn_reflns_av_sigmaI/netI    0.0357
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10092
_diffrn_reflns_theta_full        30.38
_diffrn_reflns_theta_max         30.38
_diffrn_reflns_theta_min         2.30
_exptl_absorpt_coefficient_mu    0.090
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Triclinic
_exptl_crystal_F_000             320
_refine_diff_density_max         0.233
_refine_diff_density_min         -0.426
_refine_diff_density_rms         0.099
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         3771
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0737
_refine_ls_R_factor_gt           0.0551
_refine_ls_shift/su_max          0.046
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0813P)^2^+0.1160P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1347
_refine_ls_wR_factor_ref         0.1494
_reflns_number_gt                2784
_reflns_number_total             3771
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra05780a2.cif
_cod_data_source_block           sm3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_cell_volume        740.30(12)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7220703