A Conformationally Switchable Fluorescent Oligophenol Foldamer for Selective Sensing of Copper(II) Ions
Liu, Jiaqiang; Sun, Chang; Ma, Wenliang; Lu, Yu-Jing; Yu, Lin; Zhang, Kun; Zeng, Huaqiang; RSC Adv.  (2014) –; doi:10.1039/C4RA11706A

data_7218537
_publ_section_title
;
 A Conformationally Switchable Fluorescent Oligophenol Foldamer for
 Selective Sensing of Copper(II) Ions
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C4RA11706A
_journal_year                    2014
_chemical_formula_sum            'C24 H22 N2 O7'
_chemical_formula_weight         450.44
_chemical_name_systematic        'Trimer 4'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 112.581(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.0883(19)
_cell_length_b                   9.8136(14)
_cell_length_c                   16.084(2)
_cell_measurement_reflns_used    835
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.15
_cell_measurement_theta_min      2.58
_cell_volume                     2053.2(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0321
_diffrn_reflns_av_sigmaI/netI    0.0365
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            14175
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.57
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_T_max  0.9786
_exptl_absorpt_correction_T_min  0.9378
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs, (Sheldrick 2001)'
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.457
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.450
_refine_diff_density_min         -0.289
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     310
_refine_ls_number_reflns         4705
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0596
_refine_ls_R_factor_gt           0.0492
_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^)+(0.0825P)^2^+0.4225P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1270
_refine_ls_wR_factor_ref         0.1412
_reflns_number_gt                3997
_reflns_number_total             4705
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra11706a2.cif
_cod_data_source_block           b016
_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 'Multi-scan'
changed to 'multi-scan' 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 2827 2014-09-09 07:05:25Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'Not Measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        2053.3(5)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7218537