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_7217128
_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 H15 N O'
_chemical_formula_weight         213.27
_chemical_name_systematic
;
8-acety1-1-dimethylaminonaphthalene, 7
;
_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                 105.897(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3814(2)
_cell_length_b                   10.2345(2)
_cell_length_c                   13.8672(9)
_cell_measurement_reflns_used    4962
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.1
_cell_volume                     1144.03(9)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 r11 (Rigaku, 2011)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 r11 (Rigaku, 2011)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 r11 (Rigaku, 2011)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device
;
AFC12 (Right): Kappa 3 circle
;
_diffrn_measurement_device_type
;
Rigaku Saturn724+ (2x2 bin mode)
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_measurement_specimen_support Mitegen
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0235
_diffrn_reflns_av_sigmaI/netI    0.0284
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            5401
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.05
_diffrn_source                   'Rotating Anode'
_diffrn_source_current           55.0
_diffrn_source_power             2.5
_diffrn_source_voltage           45.0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.9877
_exptl_absorpt_correction_T_min  0.9854
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrystalClear-SM Expert 2.0 r11 (Rigaku, 2011)
;
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.238
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             456
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.324
_refine_diff_density_min         -0.179
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         2586
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0419
_refine_ls_R_factor_gt           0.0378
_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^)+(0.0422P)^2^+0.3973P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0974
_refine_ls_wR_factor_ref         0.0998
_reflns_number_gt                2297
_reflns_number_total             2586
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00981a2.cif
_cod_data_source_block           ketone7
_cod_depositor_comments
'Adding full bibliography for 7217128--7217139.cif.'
_cod_original_cell_volume        1144.03(8)
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7217128