Transformations of the natural cytokinin N6-isopentenyladenine in aqueous acidic media: structural aspects.
Trávníček, Zdeněk; Novotná, Radka; Marek, Jaromír; Popa, Igor; Sipl, Michal; Organic & biomolecular chemistry 9 (2011) 5703–5713; doi:10.1039/c1ob05649b

data_7151957
_publ_section_title
;
 Transformations of the natural cytokinin N6-isopentenyladenine in
 aqueous acidic media: structural aspects.
;
_journal_issue                   16
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              5703
_journal_page_last               5713
_journal_paper_doi               10.1039/c1ob05649b
_journal_volume                  9
_journal_year                    2011
_chemical_formula_moiety         'C9 H17 N5, 2(H2 O), 2(Cl) '
_chemical_formula_sum            'C9 H21 Cl2 N5 O2'
_chemical_formula_weight         302.21
_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                 98.240(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0591(4)
_cell_length_b                   15.6552(7)
_cell_length_c                   13.2731(6)
_cell_measurement_reflns_used    5643
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      28.683
_cell_measurement_theta_min      2.7055
_cell_volume                     1451.69(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 8.3611
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Kuma KM4 + CCD'
_diffrn_measurement_method       'rotation method, \w--scan'
_diffrn_radiation_monochromator  'Enhance (Oxford Diffraction)'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0354
_diffrn_reflns_av_sigmaI/netI    0.0222
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            7984
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.36
_exptl_absorpt_coefficient_mu    0.451
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.88163
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.7 (release 18-10-2006 CrysAlis171 .NET)
(compiled Oct 18 2006,16:28:17)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.383
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.255
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     183
_refine_ls_number_reflns         2562
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0278
_refine_ls_R_factor_gt           0.0261
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0300P)^2^+0.8000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0674
_refine_ls_wR_factor_ref         0.0684
_reflns_number_gt                2434
_reflns_number_total             2562
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ob05649b.txt
_cod_data_source_block           Travnicek3
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 
;
_cod_original_sg_symbol_Hall     '-P 2yn '
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7151957