Crystallography Open Database

Information card for entry 2103700

Preview

Coordinates	2103700.cif
Structure factors	2103700.hkl
Original IUCr paper	HTML

Structure parameters

Chemical name	7b-triisopropylsilylfluoradene
Formula	C28 H32 Si
Calculated formula	C28.006 H32 Si
Title of publication	Two fluoradene derivatives: pseudosymmetry, eccentric ellipsoids and a phase transition
Authors of publication	Xia, Aibing; Selegue, John P.; Carrillo, Alberto; Patrick, Brian O.; Parkin, Sean; Brock, Carolyn Pratt
Journal of publication	Acta Crystallographica Section B
Year of publication	2001
Journal volume	57
Journal issue	4
Pages of publication	507 - 516
a	8.012 ± 0.001 Å
b	16.171 ± 0.002 Å
c	18.28 ± 0.002 Å
α	80.78 ± 0.01°
β	83.45 ± 0.01°
γ	84.07 ± 0.01°
Cell volume	2313.8 ± 0.5 Å³
Cell temperature	294 ± 1 K
Ambient diffraction temperature	294 ± 1 K
Number of distinct elements	3
Space group number	2
Hermann-Mauguin space group symbol	B -1
Hall space group symbol	-P 1 (-1/2x+1/2z,-y,1/2x+1/2z)
Residual factor for all reflections	0.088
Residual factor for significantly intense reflections	0.082
Weighted residual factors for all reflections included in the refinement	0.206
Goodness-of-fit parameter for all reflections included in the refinement	1.03
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	Yes
Has F_obs	Yes

Version history

Revision	Date	Message	Files
180897 (current)	2016-04-02	hkl/2/10/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/10/37.	2103700.cif 2103700.hkl
176432	2016-02-14	cif/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries.	2103700.cif 2103700.hkl
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2103700.cif 2103700.hkl
88064	2013-08-29	Adding _cod_database_fobs_code data item to all COD CIFs that have Fobs deposited and did not have this data item yet.	2103700.cif 2103700.hkl
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2103700.cif 2103700.hkl
17004	2011-03-31	cif/ Commiting CIFs, that were updated with the 'cif_fix_values' script, using options '--fix-misspelled replacement_values.lst', '--fix-temperature' and '--fix-enums' with built-in table of enum values. The following cmd was used: > (set -x; find ? -name \*.cif \| sort \| xargs -i sh -c 'if !( > cif_fix_values --fix-misspelled ~/../inputs/replacament_values.lst {} \| > cif_filter --add-cif-header {} \| > sponge {} ) 2>&1 \| grep NOTE; then svn revert {}; > fi' ) &	2103700.cif 2103700.hkl
966	2010-01-30	cif/ Adding _cod_database_code tags to all COD entries. Adding tag description to the cif_cod.dic dictionary so that COD entries can be validated.	2103700.cif 2103700.hkl
691	2009-05-03	Depositing the first portion of the Fobs data CIFs. These are CIFs from the Acta Cryst. journals, where the correspondence of the coordinate CIF and the Fobs CIF could be unambiguously determined automatically. In these files, cell constatnts match exctely, being equal with the floating point '==' operator in Perl. For the future depositions, such requirement is too strict, since sometimes cell constants in the coordinate and the Fobs files differ by a rounding error. Thus, a small tollerance will have to be introduced into the COD Fobs deposition scripts.	2103700.cif 2103700.hkl
397	2008-06-20	Adding new CIF files deposited from Acta-Cryst-B-2001-2003/.	2103700.cif