Additionally XRD patterns show only a very broad peak

(%) = (mol ?-caprolactam + mol cyclohexanone)/mol initial cyclohexanone oxime × 100.cSel. CPL (%) = mol ?-caprolactam/(mol ?-caprolactam + mol cyclohexanone) × 100.dTON: ?-caprolactam (mol) produced on per molar acid site.eReaction conditions: cyclohexanone oxime (1 mmol), benzonitrile (4 mL), catalyst (0.23 mmol H+), 130 °C, 6 h.Full-size tableTable optionsView in workspaceDownload as CSV