Trefolane A, a sesquiterpenoid with a new skeleton from cultures of the basidiomycete Tremella foliacea.
Ding, Jian-Hai; Feng, Tao; Li, Zheng-Hui; Yang, Xiao-Yan; Guo, Hua; Yin, Xia; Wang, Gang-Qiang; Liu, Ji-Kai; Organic letters 14 (2012) 4976–4978; doi:10.1021/ol302184r

data_1508645
_publ_section_title
;
 Trefolane A, a sesquiterpenoid with a new skeleton from cultures of the
 basidiomycete Tremella foliacea.
;
_journal_issue                   18
_journal_name_full               'Organic letters'
_journal_page_first              4976
_journal_page_last               4978
_journal_paper_doi               10.1021/ol302184r
_journal_volume                  14
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C15 H26 O2'
_chemical_formula_sum            'C15 H26 O2'
_chemical_formula_weight         238.36
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.2769(3)
_cell_length_b                   12.3605(4)
_cell_length_c                   13.4157(4)
_cell_measurement_reflns_used    7942
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      69.18
_cell_measurement_theta_min      3.29
_cell_volume                     1372.51(8)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0403
_diffrn_reflns_av_sigmaI/netI    0.0318
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            8057
_diffrn_reflns_theta_full        69.46
_diffrn_reflns_theta_max         69.46
_diffrn_reflns_theta_min         4.86
_exptl_absorpt_coefficient_mu    0.575
_exptl_absorpt_correction_T_max  0.8936
_exptl_absorpt_correction_T_min  0.7389
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.154
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.245
_refine_diff_density_min         -0.164
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(2)
_refine_ls_extinction_coef       0.0095(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     161
_refine_ls_number_reflns         2444
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0342
_refine_ls_R_factor_gt           0.0342
_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^)+(0.0497P)^2^+0.3316P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0888
_refine_ls_wR_factor_ref         0.0888
_reflns_number_gt                2443
_reflns_number_total             2444
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol302184r_si_002.cif
_cod_data_source_block           cu_ljh9h_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_database_code               1508645