Models for incomplete nucleophilic attack on a protonated carbonyl group and electron-deficient alkenes: salts and zwitterions from 1-dimethylamino-naphthalene-8-carbaldehyde.
Lari, Alberth; Pitak, Matuesz B.; Coles, Simon J.; Rees, Gregory J.; Day, Stephen P.; Smith, Mark E.; Hanna, John V.; Wallis, John D.; Organic & biomolecular chemistry 10 (2012) 7763–7779; doi:10.1039/c2ob25929j

data_7152635
_publ_section_title
;
 Models for incomplete nucleophilic attack on a protonated carbonyl group
 and electron-deficient alkenes: salts and zwitterions from
 1-dimethylamino-naphthalene-8-carbaldehyde.
;
_journal_issue                   38
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              7763
_journal_page_last               7779
_journal_paper_doi               10.1039/c2ob25929j
_journal_volume                  10
_journal_year                    2012
_chemical_formula_moiety         'C18 H17 N3'
_chemical_formula_sum            'C18 H17 N3'
_chemical_formula_weight         275.35
_chemical_name_systematic
;
1-Ethyl-2-methyl-1,2-dihydronaphtho[1,8-bc]azepine-3,3(4H)-dicarbonitrile
;
_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                 109.378(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.0771(5)
_cell_length_b                   6.6633(2)
_cell_length_c                   15.5200(6)
_cell_measurement_reflns_used    4098
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      29.06
_cell_measurement_theta_min      2.86
_cell_volume                     1470.86(9)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
;
_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 0.983
_diffrn_measured_fraction_theta_max 0.851
_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           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0157
_diffrn_reflns_av_sigmaI/netI    0.0296
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            6898
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         29.13
_diffrn_reflns_theta_min         2.86
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.980
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.291
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.088
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         3365
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0381
_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^)+(0.0495P)^2^+0.1325P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0949
_refine_ls_wR_factor_ref         0.0981
_reflns_number_gt                2690
_reflns_number_total             3365
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ob25929j.txt
_cod_data_source_block           compound_27
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7152635