Facilities

Accessories:

Variable Temperature Controller

A variety of variable temperature options offer both low and high temperature studies for studies of transition metal complexes, unstable radical species, or thermal stability of samples.

Goniometer

Goniometer is designed for angular dependent measurements and can be combined with the autosampler.

The Goniometer offers the study of anisotropic samples such as single crystals or thin films. The sample can be rotated between 0 and 360 degrees with a precision of 0.1 degree. Angles between 0° and 360° can be selected. The smallest step size is 0.1°.

Optical Irradiation

The optical irradiation accessory provides the ability to study photochemical radical reactions or photophysical production of excited paramagnetic states.

A variety of narrow or wide band excitation sources of different intensities or spectral compositions are available.

Optical Irradiation Unit

The Optical Stimulation Unit allows irradiation at specific definite wavelengths.

Integrated light source for irradiating samples

Direct operation through ESRStudio for fastest response times (a few microseconds)

Suitable to trigger kinetic experiments

High-power LED

Intensity changeable from 100 % to 1 %

Wavelength 365, 462, and 625 nm

Fixed Temperature Liquid Nitrogen Dewars

are used to measure samples at 77K. You can either drop the sample into the liquid nitrogen and the frozen drops are collected in the finger for measurement. A further possibility is to freeze a cylinder of 4 mm diameter matching the size of the inner finger of the dewar. Solid samples can be measured using sample tubes of 3 or 4 mm outer diameter and 240 mm length.