1H-NMR spectra were recorded on a BRUKER AV II-300 (300 MHz) at 25 °C using D2O/DCl 285:1 or 500:1 as solvent with DSS (4,4-dimethyl-4-silapentane-1-sulfonic acid) as an internal reference. NMR-spectra were analyzed by MeReNova 9.0. FTIR spectra were recorded on a Bruker Equinox 55 spectrometer. A mercury cadmium telluride detector and a ZnSe crystal ATR accessory (Harrick Scientific Products Inc., Pleasantville, NY, USA) were used for detection. Particles size and zeta potential were measured with a Zetasizer Nano ZS from Malvern Instruments (Malvern, UK). Size measurements were carried out in disposable sizing cuvettes (DTS0012) and for zeta potential measurements, disposable folded capillary cells (DTS1070) were used. The measurements were carried out at 20 °C. For analysis, Malvern Zetasizer Software Version 7.03 was used. For all ellipsometric measurements, a Multiscope (Optrel, Sinzing, Germany) was used. Each silicon wafer was measured as uncoated sample before use as a reference. Measurements were carried out in x,y-mode at an angle of 70°. The surface of the coated wafers was scanned with 16 data points in a 4x4 matrix. Data evaluation was carried out using ELLI Version 3.2 from Optrel.
Av 2 300
Manufactured by Bruker
The AV II-300 is a Nuclear Magnetic Resonance (NMR) spectrometer designed for routine and research applications. It features a 300 MHz superconducting magnet and provides high-resolution analysis of chemical structures and compositions.
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Lab products found in correlation
2 protocols using av 2 300
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Comprehensive Analytical Characterization of Nanomaterials
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Air-sensitive Complexes Synthesis and Characterization
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All operations with air-and moisture-sensitive compounds were performed in a glove box under a dry argon atmosphere (MBraun GmbH, MB20G) or on a vacuum line using Schlenk techniques. Solvents were either purified via standard methods 35 or obtained by purification with an Mbraun SPS and subsequently stored over Molecular Sieves (3-4 Å). Deuterated solvents were distilled from Na/K or CaH 2 , and degassed prior to use. The 1 H and 13 C{ 1 H} NMR spectra were recorded on Bruker AVII300, Bruker AVIIHD400, Bruker AVIIIHD500 and Bruker AVII600 spectrometers at room temperature. 1 H and 13 C{ 1 H} NMR spectra were referenced against the (residual) solvent signals. 36 Chemical shifts are reported in ppm ( parts per million). Coupling constants ( J) are reported in Hertz (Hz), and splitting patterns are indicated as s (singlet), d (doublet), t (triplet), q (quartet), m (multiplet), sept (septet) and br (broad). NMR assignments were made using additional 2D NMR experiments. Elemental analysis was carried out with a Vario Micro Cube System. Unless otherwise indicated, all starting materials were obtained from Sigma-Aldrich, ABRC, TCI, Acros or Fluka and were purified if necessary.
[IAdMesH] Cl 28, 29 and [IAdDippH]Cl 28, 29 were prepared according to literature procedures.
[IAdMesH] Cl 28, 29 and [IAdDippH]Cl 28, 29 were prepared according to literature procedures.
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