Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Plot of initial rate vs free THF concentration in hexane for the metalation of 4 (0.010 M) at –40 °C measured with IR spectroscopy (1655 cm–1). The curve depicts an unweighted least-squares fit to y = ax + b (a = 0.91 ± 0.02, b = –0.017 ± 0.002).
