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Acta Cryst. (2005). E61, o2547-o2548  [ doi:10.1107/S1600536805022142 ]

A new polymorph of 2,5-bis(4-pyridyl)-1,3,4-thiadiazole

X.-J. Zhao, H. Cai and M. Du

Online 16 July 2005

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Alert level C ABSTM02_ALERT_3_C The ratio of expected to reported Tmax/Tmin(RR') is < 0.90 Tmin and Tmax reported: 0.770 1.000 Tmin(prime) and Tmax expected: 0.917 0.978 RR(prime) = 0.821 Please check that your absorption correction is appropriate. PLAT061_ALERT_3_C Tmax/Tmin Range Test RR' too Large ............. 0.82 PLAT062_ALERT_4_C Rescale T(min) & T(max) by ..................... 0.98 PLAT199_ALERT_1_C Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_C Check the Reported _diffrn_ambient_temperature . 293 K PLAT322_ALERT_2_C Check Hybridisation of S1 in Main Residue . ?
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 6 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 ALERT type 2 Indicator that the structure model may be wrong or deficient 2 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion

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