Compound

2

3

4

6

7

Empirical formula

C₁₂H₁₄O₅

C₁₂H₁₄O₅

C₁₈H₁₈O₄

C₂₄H₂₂O₄

C₁₇H₁₆O₄

Formula weight

238.23

238.23

298.32

374.41

284.30

Crystal external appearance

Colorless prism

Colorless prism

Colorless prism

Colorless prism

Colorless prism

Diffractometer

Bruker APEX2 CCD

Bruker APEX2 CCD

Bruker APEX2 CCD

Bruker APEX2 CCD

Bruker APEX2 CCD

Scanmode

Omega scans

Omega scans

Omega scans

Omega scans

Omega scans

Theta range for data collection

2.89 to 25.40 deg

2.73 to 25.37 deg

2.37 to 25.29 deg

2.30 to 25.41 deg

2.48 to 25.32 deg

Wavelength

Mo Kα (0.71073 Å)

Mo Kα (0.71073 Å)

Mo Kα (0.71073 Å)

Mo Kα (0.71073 Å)

Mo Kα (0.71073 Å)

Program system

SHELXTL

SHELXTL

SHELXTL

SHELXTL

SHELXTL

Structure determination

Direct methods (SHELXS-2014/7)

Direct methods (SHELXS-2014/7)

Direct methods (SHELXS-2014/7)

Direct methods (SHELXS-2014/7)

Direct methods (SHELXS-2014/7)

Refinement method

Full-matrix least-squares on F² (SHELXL-2014/7)

Full-matrix least-squares on F² (SHELXL-2014/7)

Full-matrix least-squares on F² (SHELXL-2014/7)

Full-matrix least-squares on F² (SHELXL-2014/7)

Full-matrix least-squares on F² (SHELXL-2014/7)