1. What is Turnover Frequency from Turnover Number?

Definition: This calculator determines the turnover frequency (TOF) based on the turnover number (TON) and the time taken for the reaction.

Purpose: It helps chemists and researchers quantify the efficiency of a catalyst in terms of how many catalytic cycles occur per unit time.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( TOF \) — Turnover Frequency (1/second)
• \( TON \) — Turnover Number (dimensionless)
• \( t \) — Time Taken for Reaction (seconds)

Explanation: The turnover number is divided by the reaction time to determine how many catalytic cycles occur per second.

3. Importance of Turnover Frequency

Details: Turnover frequency is a key metric in catalysis that indicates how efficient a catalyst is at converting reactants to products per unit time.

4. Using the Calculator

Tips: Enter the turnover number (total catalytic cycles) and the time taken for the reaction in seconds. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between TON and TOF?
A: TON is the total number of cycles, while TOF is the rate of cycles per unit time.

Q2: What are typical TOF values?
A: Good catalysts typically have TOF values between 0.1-1000 s⁻¹, depending on the reaction.

Q3: How do I measure TON experimentally?
A: TON is determined by measuring total product formed divided by moles of catalyst.

Q4: Does TOF depend on reaction conditions?
A: Yes, TOF varies with temperature, pressure, and reactant concentrations.

Q5: What's a good TOF for industrial applications?
A: Industrial processes typically require TOF > 1 s⁻¹ for economic viability.