O- vs. N-protonation of 1-dimethylaminonaphthalene-8-ketones: formation of a peri N–C bond or a hydrogen bond to the pi-electron density of a carbonyl group
Mercadal, Nerea; Day, Stephen P.; Jarmyn, Andrew; Pitak, Mateusz B.; Coles, Simon J.; Wilson, Claire; Rees, Gregory J.; Hanna, John V.; Wallis, John D.; CrystEngComm 16 (2014) 8363–; doi:10.1039/C4CE00981A

data_7217132
_publ_section_title
;
 O- vs. N-protonation of 1-dimethylaminonaphthalene-8-ketones: formation
 of a peri N--C bond or a hydrogen bond to the pi-electron density of a
 carbonyl group
;
_journal_issue                   36
_journal_name_full               CrystEngComm
_journal_page_first              8363
_journal_paper_doi               10.1039/C4CE00981A
_journal_volume                  16
_journal_year                    2014
_chemical_formula_sum            'C14 H12 F3 N O'
_chemical_formula_weight         267.25
_chemical_name_systematic
; 
1-dimethylamino-8-trifluoroacetylnaphthalene 11
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 98.319(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.5626(8)
_cell_length_b                   7.4932(4)
_cell_length_c                   13.1887(9)
_cell_measurement_reflns_used    1786
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.8607
_cell_measurement_theta_min      3.1221
_cell_volume                     1228.44(13)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.15 (release 03-08-2011 CrysAlis171 .NET)
(compiled Aug  3 2011,13:03:54)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.15 (release 03-08-2011 CrysAlis171 .NET)
(compiled Aug  3 2011,13:03:54)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.15 (release 03-08-2011 CrysAlis171 .NET)
(compiled Aug  3 2011,13:03:54)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 15.9832
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.866
_diffrn_measurement_device_type  'Xcalibur, Sapphire3'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0340
_diffrn_reflns_av_sigmaI/netI    0.0647
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5369
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         28.87
_diffrn_reflns_theta_min         3.12
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.88520
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.15 (release 03-08-2011 CrysAlis171 .NET)
(compiled Aug  3 2011,13:03:54)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.445
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'thick plate'
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.2129
_exptl_crystal_size_mid          0.1606
_exptl_crystal_size_min          0.0706
_refine_diff_density_max         0.219
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2795
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0806
_refine_ls_R_factor_gt           0.0517
_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^)+(0.0305P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0884
_refine_ls_wR_factor_ref         0.1017
_reflns_number_gt                1992
_reflns_number_total             2795
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00981a2.cif
_cod_data_source_block           ketone11
_cod_depositor_comments
'Adding full bibliography for 7217128--7217139.cif.'
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7217132