Research Article

Spectral Analysis and Crystal Structures of 4-(4-Methylphenyl)-6-Phenyl-2,3,3a, 4-Tetrahydro-1H-Pyrido[3,2,1-jk]Carbazole and 4-(4-Methoxyphenyl)-6-Phenyl-2,3,3a, 4-Tetrahydro-1H-Pyrido[3,2,1-jk]Carbazole

Table 2

The crystal data, experimental conditions, and structure refinement parameters for the compound (IIb).

Empirical formulaC28H25NO

Formula weight391.49
Temperature293(2)โ€‰K
Wavelength0.71069โ€‰ร…
Crystal system, Space groupMonoclinic, P21/a
Unit cell dimensions ๐‘Ž = 1 1 . 3 7 6 ( 5 ) ร…
๐‘ = 1 4 . 1 3 9 ( 5 ) ร…, ๐›ฝ = 9 7 . 4 1 3 ( 5 ) โˆ˜
๐‘ = 1 3 . 2 3 7 ( 5 ) ร…
Volume2111.3(14) ร…3
๐‘ , Calculated density4, 1.232โ€‰Mg/m3
Absorption coefficient0.074โ€‰mmโˆ’1
๐น (000)832
Crystal size 0 . 2 3 ร— 0 . 1 9 ร— 0 . 1 3 โ€‰mm3
Theta range for data collection2 to 25ยฐ
Index ranges 0 โ‰ค โ„Ž โ‰ค 1 3 , โˆ’ 1 โ‰ค ๐‘˜ โ‰ค 1 6 , โˆ’ 1 5 โ‰ค ๐‘™ โ‰ค 1 5
Reflections collected4245
Independent reflections3685 ( ๐‘… i n t = 0 . 0 1 8 9 )
Completeness to ๐œƒ = 2 4 . 9 6 โˆ˜ 99.6%
Absorption correctionPsi-scan
Refinement methodFull-matrix least-squares on ๐น 2
Data/restraints/parameters3685/0/272
Goodness-of-fit on ๐น 2 1.078
Final ๐‘… indices [ ๐ผ > 2 ๐œŽ ( ๐ผ ) ] ๐‘… 1 = 0 . 0 3 7 9 , ๐‘ค ๐‘… 2 = 0 . 0 9 7 0
๐‘… indices (all data) ๐‘… 1 = 0 . 0 7 5 5 , ๐‘ค ๐‘… 2 = 0 . 1 2 1 4
Extinction coefficient0.008(1)
Largest diff. peak and hole0.208 and โˆ’0.180โ€‰eยทร…โˆ’3