Anion-controlled stereoselective synthesis of cyclobutane derivatives by solid-state [2 + 2] cycloaddition reaction of the salts of trans-3-(4-pyridyl) acrylic acid.
Kole, Goutam Kumar; Tan, Geok Kheng; Vittal, Jagadese J.; Organic letters 12 (2010) 128–131; doi:10.1021/ol9025233

data_1503344
_publ_section_title
;
 Anion-controlled stereoselective synthesis of cyclobutane derivatives by
 solid-state [2 + 2] cycloaddition reaction of the salts of
 trans-3-(4-pyridyl) acrylic acid.
;
_journal_issue                   1
_journal_name_full               'Organic letters'
_journal_page_first              128
_journal_page_last               131
_journal_paper_doi               10.1021/ol9025233
_journal_volume                  12
_journal_year                    2010
_chemical_formula_sum            'C24 H27 N3 O15 S2'
_chemical_formula_weight         661.61
_space_group_IT_number           14
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_cell_length_b                   9.1024(7)
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_cell_measurement_temperature    223(2)
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_computing_cell_refinement       'Bruker SMART'
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_computing_publication_material  'Bruker SHELXTL'
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_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0492P)^2^+1.5062P] where P=(Fo^2^+2Fc^2^)/3'
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_cod_data_source_file            ol9025233_si_003.cif
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_cod_depositor_comments
;
The following automatic conversions were performed:

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

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' 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 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'Not Measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        2800.4(4)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1503344