Stern Volmner Constant Calculator

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✖Intensity Without Quenching is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.ⓘ Intensity Without Quenching [I_o]			+10% -10%
✖Fluorosence Intensity formula is defined as the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.ⓘ Fluorosence Intensity [I_F]			+10% -10%
✖Quencher Concentration given Degree of Exciplex is the concentration of substance that decreases fluoroscence intensity.ⓘ Quencher Concentration given Degree of Exciplex [[Q]]			+10% -10%

✖Stern Volmner Constant is the bimolecular rate constant of the fluorescence quenching process due to a short-range interaction of species.ⓘ Stern Volmner Constant [K_SV]

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Formula

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Stern Volmner Constant

Formula

`"K"_{"SV"} = (("I_o"/"I"_{"F"})-1)/"[Q]"`

Example

`"-0.005556"=(("238W/m²"/"240W/m²")-1)/"1.5"`

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Stern Volmner Constant Solution

STEP 0: Pre-Calculation Summary

Formula Used

Stern Volmner Constant = ((Intensity Without Quenching/Fluorosence Intensity)-1)/Quencher Concentration given Degree of Exciplex
K_SV = ((I_o/I_F)-1)/[Q]
This formula uses 4 Variables

Variables Used

Stern Volmner Constant - Stern Volmner Constant is the bimolecular rate constant of the fluorescence quenching process due to a short-range interaction of species.
Intensity Without Quenching - (Measured in Watt per Square Meter) - Intensity Without Quenching is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.
Fluorosence Intensity - (Measured in Watt per Square Meter) - Fluorosence Intensity formula is defined as the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.
Quencher Concentration given Degree of Exciplex - Quencher Concentration given Degree of Exciplex is the concentration of substance that decreases fluoroscence intensity.

STEP 1: Convert Input(s) to Base Unit

Intensity Without Quenching: 238 Watt per Square Meter --> 238 Watt per Square Meter No Conversion Required
Fluorosence Intensity: 240 Watt per Square Meter --> 240 Watt per Square Meter No Conversion Required
Quencher Concentration given Degree of Exciplex: 1.5 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

K_SV = ((I_o/I_F)-1)/[Q] --> ((238/240)-1)/1.5

Evaluating ... ...

K_SV = -0.00555555555555554

STEP 3: Convert Result to Output's Unit

-0.00555555555555554 --> No Conversion Required

FINAL ANSWER

-0.00555555555555554 ≈ -0.005556 <-- Stern Volmner Constant

(Calculation completed in 00.004 seconds)

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< 25 Emission Spectroscopy Calculators

Intensity of Fluorescence given Degree of Exciplex Formation

Go Fluorosence Intensity given Degree of Exciplex = Rate Constant of Fluoroscence*Equilibrium Constant for Coordinate Complexes*(1-Degree of Exciplex Formation)/(Rate Constant of Fluoroscence+Rate Constant of Non Radiative Reaction)

Degree of Exciplex Formation

Go Degree of Exciplex Formation = (Equilibrium Constant for Coordinate Complexes*Quencher Concentration given Degree of Exciplex)/(1+(Equilibrium Constant for Coordinate Complexes*Quencher Concentration given Degree of Exciplex))

Fluoroscence Quantum Yield given Phosphorescence Quantum Yield

Go Fluorosecence Quantum Yield given Ph = Phosphosecence Quantum Yield*((Rate Constant of Fluoroscence*Singlet State Concentration)/(Phosphorescence Rate Constant*Concentration of Triplet State))

Fluorosence Intensity at Low Concentration of Solute

Go Fluorosence Intensity at Low Concentration = Fluorosecence Quantum Yield*Initial Intensity*2.303*Spectroscopical Molar Extinction Coefficient*Concentration at Time t*Length

Fluorescence Quantum Yield

Go Quantum Yield of Fluorescence = Rate of Radiative Reaction/(Rate of Radiative Reaction+Rate of Internal Conversion+Rate Constant of Intersystem Crossing+Quenching Constant)

Initial Intensity given Degree of Exciplex Formation

Go Initial Intensity given Degree of Exciplex = Rate Constant of Fluoroscence*Equilibrium Constant for Coordinate Complexes/(Rate Constant of Fluoroscence+Rate Constant of Non Radiative Reaction)

Intensity Ratio

Go Intensity Ratio = 1+(Quencher Concentration given Degree of Exciplex*(Quenching Constant/(Rate Constant of Fluoroscence+Rate Constant of Non Radiative Reaction)))

Quantum Yield of Fluorescence

Go Quantum Yield of Fluorescence = Rate Constant of Fluoroscence/(Rate Constant of Fluoroscence+Rate of Internal Conversion+Rate Constant of Intersystem Crossing)

Singlet Life Time of Radiative Process

Go Singlet Life time of Radiative Process = ((Initial Intensity/Fluorosence Intensity)-1)/(Quenching Constant*Quencher Concentration given Degree of Exciplex)

Fluoroscence Intensity without Quenching

Go Intensity Without Quenching = (Rate Constant of Fluoroscence*Absorption Intensity)/(Rate Constant of Non Radiative Reaction+Rate Constant of Fluoroscence)

Final Intensity using Stern Volmer Equation

Go Final Intensity = Initial Intensity/(1+(Singlet Life time given Degree of Exciplex*Quenching Constant*Quencher Concentration given Degree of Exciplex))

Fluoroscence Intensity

Go Fluorosence Intensity = (Rate Constant of Fluoroscence*Absorption Intensity)/(Rate Constant of Fluoroscence+Rate Constant of Non Radiative Reaction)

Singlet Life Time

Go Singlet Life time = 1/(Rate Constant of Intersystem Crossing+Rate of Radiative Reaction+Rate of Internal Conversion+Quenching Constant)

Collisional Energy Transfer

Go Rate of Collisional Energy Transfer = Quenching Constant*Quencher Concentration given Degree of Exciplex*Singlet State Concentration

Rate of Deactivation

Go Rate of Deactivation = (Rate Constant of Non Radiative Reaction+Rate Constant of Fluoroscence)*Singlet State Concentration

Quenching Concentration given Degree of Exciplex Formation

Go Quencher Concentration given Degree of Exciplex = ((1/(1-Degree of Exciplex Formation))-1)*(1/Equilibrium Constant for Coordinate Complexes)

Quenching Concentration

Go Quencher Concentration = ((Initial Intensity/Fluorosence Intensity)-1)/Stern Volmner Constant

Singlet Life given Degree of Exciplex Formation

Go Singlet Life time given Degree of Exciplex = 1/(Rate Constant of Fluoroscence+Rate Constant of Non Radiative Reaction)

Rate of Phosphorescence

Go Phosphorescence Rate = Phosphorescence Rate Constant*Concentration of Triplet State

Fluorescence Rate Constant

Go Rate Constant of Fluoroscence = Rate of Fluoroscence/Singlet State Concentration

Rate of Activation

Go Rate of Activation = Equilibrium Constant*(1-Degree of Dissociation of Emission)

ISC Rate Constant

Go Rate Constant of ISC = Rate of Intersystem Crossing*Singlet State Concentration

Difference in Acidity between Ground and Excited State

Go Difference in pka = pKa of Excited State-pKa of Ground State

Equilibrium Constant for Exciplex Formation

Go Equilibrium Constant for Coordinate Complexes = 1/(1-Degree of Exciplex Formation)-1

Singlet Radiative Phosphorescence Lifetime

Go Singlet Radiative Phosphorescence Lifetime = 1/Rate of Phosphorescence

Stern Volmner Constant Formula

Stern Volmner Constant = ((Intensity Without Quenching/Fluorosence Intensity)-1)/Quencher Concentration given Degree of Exciplex
K_SV = ((I_o/I_F)-1)/[Q]

What is quenching Stern-Volmer plot?

Image result for stern volmer quenching constant meaning
A Stern-Volmer plot is an elegant method of determining quantitative information (for example, rate constant) about fluorescence quenching when the nature of that quenching is reasonably well known; however, on its own, a single Stern-Volmer plot is unreliable for identifying how unknown quenching is mediated.

What is called quenching?

Quenching involves the rapid cooling of a metal to adjust the mechanical properties of its original state. To perform the quenching process, a metal is heated to a temperature greater than that of normal conditions, typically somewhere above its recrystallization temperature but below its melting temperature.

How to Calculate Stern Volmner Constant?

Stern Volmner Constant calculator uses Stern Volmner Constant = ((Intensity Without Quenching/Fluorosence Intensity)-1)/Quencher Concentration given Degree of Exciplex to calculate the Stern Volmner Constant, The Stern Volmner Constant formula is defined as the bimolecular rate constant of the fluorescence quenching process due to a short-range interaction of species. If the fluorescence quantum yield remains proportional to the integrated emission intensity upon addition of the quencher. Stern Volmner Constant is denoted by K_SV symbol.

How to calculate Stern Volmner Constant using this online calculator? To use this online calculator for Stern Volmner Constant, enter Intensity Without Quenching (I_o), Fluorosence Intensity (I_F) & Quencher Concentration given Degree of Exciplex ([Q]) and hit the calculate button. Here is how the Stern Volmner Constant calculation can be explained with given input values -> -0.005556 = ((238/240)-1)/1.5.

FAQ

What is Stern Volmner Constant?

The Stern Volmner Constant formula is defined as the bimolecular rate constant of the fluorescence quenching process due to a short-range interaction of species. If the fluorescence quantum yield remains proportional to the integrated emission intensity upon addition of the quencher and is represented as K_SV = ((I_o/I_F)-1)/[Q] or Stern Volmner Constant = ((Intensity Without Quenching/Fluorosence Intensity)-1)/Quencher Concentration given Degree of Exciplex. Intensity Without Quenching is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy, Fluorosence Intensity formula is defined as the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy & Quencher Concentration given Degree of Exciplex is the concentration of substance that decreases fluoroscence intensity.

How to calculate Stern Volmner Constant?

The Stern Volmner Constant formula is defined as the bimolecular rate constant of the fluorescence quenching process due to a short-range interaction of species. If the fluorescence quantum yield remains proportional to the integrated emission intensity upon addition of the quencher is calculated using Stern Volmner Constant = ((Intensity Without Quenching/Fluorosence Intensity)-1)/Quencher Concentration given Degree of Exciplex. To calculate Stern Volmner Constant, you need Intensity Without Quenching (I_o), Fluorosence Intensity (I_F) & Quencher Concentration given Degree of Exciplex ([Q]). With our tool, you need to enter the respective value for Intensity Without Quenching, Fluorosence Intensity & Quencher Concentration given Degree of Exciplex and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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