Synthesis and Characterization of a Novel, Ditopic, Reversible and Highly Selective “Turn-On” Fluorescent Chemosensor for Al3+ Ion
Singh, Akhilesh Kumar; Hossain, Sayed Muktar; Lakma, Avinash; Pradhan, Rabindra Nath; Chakraborty, Ayon; Biswas, Ashis; RSC Adv.  (2015) –; doi:10.1039/C5RA12040C

data_7221556
_publ_section_title
;
 Synthesis and Characterization of a Novel, Ditopic, Reversible and Highly
 Selective &#x201C;Turn-On&#x201D; Fluorescent Chemosensor for Al3+ Ion
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA12040C
_journal_year                    2015
_chemical_formula_moiety         'C31 H32 N4 O2'
_chemical_formula_sum            'C31 H32 N4 O2'
_chemical_formula_weight         492.61
_chemical_melting_point          160
_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
;
2015-02-13 deposited with the CCDC.
2015-07-14 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 96.921(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.0342(16)
_cell_length_b                   11.9408(15)
_cell_length_c                   16.232(2)
_cell_measurement_temperature    110(2)
_cell_volume                     2507.9(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART APEX'
_computing_data_reduction        'Bruker SAINT PLUS'
_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    'SIR97(Altomare, et. al. 1999)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0608
_diffrn_reflns_av_sigmaI/netI    0.0356
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            41229
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.9836
_exptl_absorpt_correction_T_min  0.9676
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.305
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1048
_exptl_crystal_preparation       Luminescent
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     344
_refine_ls_number_reflns         5475
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0850
_refine_ls_R_factor_gt           0.0546
_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^)+(0.0808P)^2^+0.8765P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1418
_refine_ls_wR_factor_ref         0.1574
_reflns_number_gt                3870
_reflns_number_total             5475
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra12040c2.cif
_cod_data_source_block           mo_l1_lt_0m
_cod_depositor_comments
;
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.

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' 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        2507.8(5)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7221556