U 3501 spectrophotometer

Manufactured by Hitachi

The U-3501 spectrophotometer is a versatile instrument designed for accurate and reliable absorbance measurements. It features a wide wavelength range, automatic wavelength selection, and a high-resolution display. The U-3501 is suitable for a variety of applications in research and analytical laboratories.

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Lab products found in correlation

Xevo g2 s qtof mass spectrometer, by Waters Corporation (1 mentions) Fluorocube 01 nl, by Horiba (1 mentions) Spectrum rx1, by PerkinElmer (1 mentions) 2400 chn elemental analyzer, by PerkinElmer (1 mentions) Model jsm 6390lv, by JEOL (1 mentions) Auto flex max lrf, by Bruker (1 mentions) 2400 chnelemental analyzer, by Bruker (1 mentions) Rfs 27, by Bruker (1 mentions) Pb no3 2, by Merck Group (1 mentions) Cd oac 2 2h2o, by Merck Group (1 mentions)

3 protocols using u 3501 spectrophotometer

Characterization of Photophysical Properties

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NMR spectra
were recorded on a Bruker Advanced Supercon 300 MHz NMR spectrophotometer
using tetramethylsilane as the internal standard. Steady-state UV–vis
absorption profiles were recorded on a Hitachi U-3501 spectrophotometer.
Steady-state emission and excited-state decay profiles were recorded
on PerkinElmer LS-55 and Horiba Jobin Yvon FluoroCube-01-NL, respectively.
Mass spectrometry was carried out in a Waters Xevo G2-S Q TOF mass
spectrometer. Pyrene-1-aldehyde and (4-dimethylamino)cinnamaldehyde
were obtained from commercial sources and used as received. Solvents
used were of spectroscopic grade. During steady-state absorption and
emission measurements, the concentration of the probe was maintained
at a micromolar range to avoid aggregation, reabsorption, or self-quenching.
All data were recorded at room temperature. The excited-state lifetime
measurements were carried out by exciting the sample using a picosecond
laser diode of 375 nm. The signals were obtained by setting the emission
polarizer at magic angle (54.7°) to prevent anisotropy, and the
decays were deconvoluted using DAS6 software. The goodness of fitting
was judged using χ² criteria. The average lifetime
was calculated using standard procedures.^{45 (link)} The quantum yield values were calculated using Coumarin 153 as the
standard.^{46 (link)}

Bhattacharyya A., Makhal S.C, & Guchhait N. (2019). Photophysical Properties of an Azine-Linked Pyrene–Cinnamaldehyde Hybrid: Evidence of Solvent-Dependent Charge-Transfer-Coupled Excimer Emission. ACS Omega, 4(1), 2178-2187.

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Comprehensive Characterization of Synthesized Compounds

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Elemental analyses of the synthesized compounds were performed using a PerkinElmer 2400 CHN Elemental Analyzer. FT-IR spectra were recorded as KBr pellets (4000-400 cm⁻¹) having 16 scans at a wave number resolution of 4 cm⁻¹ on a Perkin–Elmer spectrum RX 1 using detector DTGS (Deuterated triglycine sulphate). A Bruker 400 MHz collected NMR spectra, and a 75.45 MHz NMR spectrometer using TMS as an internal standard in NMR solvent like DMSO‑d₆. JEOL Model JSM6390LV analyzed SEM micrographs. The EDX was performed on EDX OXFORD XMX N using W filament. UV-Visible spectra (200–1100 nm) in methanol solvent were determined using the Hitachi model U-3501 spectrophotometer.

Majumdar D., Dubey A., Tufail A., Sutradhar D, & Roy S. (2023). Synthesis, spectroscopic investigation, molecular docking, ADME/T toxicity predictions, and DFT study of two trendy ortho vanillin-based scaffolds. Heliyon, 9(6), e16057.

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Synthesis and Characterization of Cd(II) and Pb(II) Complexes

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The chemicals and solvents used to synthesize the ligand and CP were reagent grade and were used without further purification. Cd(OAc)₂·2H₂O, Pb(NO₃)₂, sodium thiocyanate (NaSCN), 3-methoxy-2-hydroxybenzaldehyde, and 2-hydroxy-1,3-diaminopropane were purchased from the Sigma Aldrich Company, USA. Elemental analysis (CHN) and mass spectrometry were carried out using a PerkinElmer 2400 CHN elemental analyzer and MALDI-TOF: Bruker Auto flex max LRF. IR and Raman spectra were recorded as KBr pellets (4000–400 cm⁻¹) using a PerkinElmer spectrum RX 1 and BRUKER RFS 27 (4000–50 cm⁻¹) model. ¹H and ¹³C NMR spectra were collected on a Bruker 400 MHz and 75.45 MHz FT-NMR spectrometer using TMS as an internal standard in DMSO-d₆. BRUKER AXS carried out PXRD measurements and a GERMANY X-ray diffractometer D8 FOCUS model with Cu Kα-1 radiation was used. UV-visible spectra of the ligand (CH₃OH) and the complex (DMF) (200–1100 nm) were determined using a Hitachi model U-3501 spectrophotometer.

Majumdar D., Frontera A., Gomila R.M., Das S, & Bankura K. (2022). Synthesis, spectroscopic findings and crystal engineering of Pb(ii)–Salen coordination polymers, and supramolecular architectures engineered by σ-hole/spodium/tetrel bonds: a combined experimental and theoretical investigation. RSC Advances, 12(10), 6352-6363.

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