Near-Infrared Solid-State Emitters Based on Isophorone: Synthesis, Crystal Structure and Spectroscopic Properties.†
Massin, Julien; Dayoub, Wissam; Mulatier, Jean-Christophe; Aronica, Christophe; Bretonnière, Yann; Andraud, Chantal; Chemistry of Materials 23 (2011) 862–; doi:10.1021/cm102165r

data_4000711
_publ_section_title
;
 Near-Infrared Solid-State Emitters Based on Isophorone: Synthesis,
 Crystal Structure and Spectroscopic Properties.&#x2020;
;
_journal_issue                   3
_journal_name_full               'Chemistry of Materials'
_journal_page_first              862
_journal_paper_doi               10.1021/cm102165r
_journal_volume                  23
_journal_year                    2011
_chemical_formula_moiety         'C27 H31 N3 O4'
_chemical_formula_sum            'C27 H31 N3 O4'
_chemical_formula_weight         461.56
_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
_audit_creation_date             09-05-04
_audit_creation_method           CRYSTALS_ver_12.85
_cell_angle_alpha                90
_cell_angle_beta                 91.537(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.727(5)
_cell_length_b                   17.596(5)
_cell_length_c                   8.291(5)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    293
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     2585.2(19)
_computing_cell_refinement       'USER DEFINED CELL REFINEMENT'
_computing_data_collection       'USER DEFINED DATA COLLECTION'
_computing_data_reduction        'USER DEFINED DATA REDUCTION'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SHELXS 86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.934
_diffrn_measured_fraction_theta_max 0.768
_diffrn_measurement_device       Unknown
_diffrn_measurement_device_type  Serial
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.084
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            14138
_diffrn_reflns_theta_full        25.026
_diffrn_reflns_theta_max         29.793
_diffrn_reflns_theta_min         3.263
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  1.0000
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.186
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.64
_refine_diff_density_min         -0.53
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.6887
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     307
_refine_ls_number_reflns         1805
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.2045
_refine_ls_R_factor_gt           0.0882
_refine_ls_shift/su_max          0.000069
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 10.8 -2.25 7.16 2.85 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0835
_refine_ls_wR_factor_gt          0.0749
_refine_ls_wR_factor_ref         0.0749
_reflns_limit_h_max              22
_reflns_limit_h_min              -23
_reflns_limit_k_max              24
_reflns_limit_k_min              0
_reflns_limit_l_max              11
_reflns_limit_l_min              0
_reflns_number_gt                1805
_reflns_number_total             5693
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   0.00
_oxford_diffrn_Wilson_scale      0.00
_oxford_refine_ls_r_factor_ref   0.0882
_oxford_refine_ls_scale          1.240(5)
_oxford_reflns_number_all        5683
_oxford_reflns_threshold_expression_ref I>2.0\s(I)
_oxford_structure_analysis_title 'import in P 1 21/c 1'
_cod_data_source_file            cm102165r_si_010.cif
_cod_data_source_block           JMdiacetate
_cod_depositor_comments
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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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_database_code               4000711