Question

1. many brominated compounds are lachrymators. what is a lachrymator? what is the best safety precaution to take when working with a compound that is known to be a strong lachrymator? 2. predict the 1 h-nmr spectra of the product of the reaction. include number of signals, chemical shift of each signal, multiplicity (splitting) of each signal and integration of each signal.

Answer 1

A lachrymator is a substance that causes eye irritation, and when working with it, using a fume hood and PPE is crucial. The 1 H-NMR spectra prediction involves detailing the number of signals, their chemical shifts, multiplicities, and integrations, which all depend on the molecular structure of the compound being analyzed.

Step-by-step explanation:

A lachrymator is a chemical substance that causes tearing by irritating the mucous membranes of the eyes. The best safety precaution when working with a strong lachrymator is to conduct the work in a well-ventilated area such as a fume hood, which can help to evacuate the irritant gases or vapors. Always wear appropriate personal protective equipment (PPE) like safety goggles and gloves.

Regarding the prediction of 1 H-NMR spectra, this depends on the specific compound being analyzed and its molecular structure. A typical 1 H-NMR analysis would include identifying the number of signals based on distinct hydrogen environments, noting their chemical shifts in parts per million (ppm), their multiplicity or splitting patterns (singlet, doublet, triplet, etc.), and the integration of each signal which correlates with the number of protons contributing to that signal.