Lab Journal
Reading 2D NMR: COSY, HSQC and HMBC by NorrChemica
A 2D NMR spectrum spreads the signals over two axes, and its peaks become correlations — which protons couple, each proton on its carbon, and the long-range links across the...
Reading 2D NMR: COSY, HSQC and HMBC by NorrChemica
A 2D NMR spectrum spreads the signals over two axes, and its peaks become correlations — which protons couple, each proton on its carbon, and the long-range links across the...
Beyond ¹H and ¹³C: Reading Fluorine, Phosphorus...
Past ¹H and ¹³C: when a molecule carries fluorine, phosphorus or boron, one ¹⁹F, ³¹P or ¹¹B spectrum reads that element directly — the species present, their coordination, the oxidation...
Beyond ¹H and ¹³C: Reading Fluorine, Phosphorus...
Past ¹H and ¹³C: when a molecule carries fluorine, phosphorus or boron, one ¹⁹F, ³¹P or ¹¹B spectrum reads that element directly — the species present, their coordination, the oxidation...
Reading ¹H and ¹³C NMR — A working chemist's gu...
A practical guide to reading ¹H and ¹³C NMR — chemical shift, integration, coupling constants, the ¹³C carbon-count check, and quantitative NMR — for chemists comfortable at the bench but...
Reading ¹H and ¹³C NMR — A working chemist's gu...
A practical guide to reading ¹H and ¹³C NMR — chemical shift, integration, coupling constants, the ¹³C carbon-count check, and quantitative NMR — for chemists comfortable at the bench but...
Choosing a Coupling Reagent for Amide and Pepti...
Two amide couplings that look identical on paper can give a clean product or a racemised mess, depending only on the reagent and additive. A practical guide to the carbodiimides,...
Choosing a Coupling Reagent for Amide and Pepti...
Two amide couplings that look identical on paper can give a clean product or a racemised mess, depending only on the reagent and additive. A practical guide to the carbodiimides,...
Searching a Catalogue by Structure: A Working C...
Most suppliers let you search by name or CAS — which only helps if you already know what you want. NorrChemica's structure search lets you query the catalogue by drawn...
Searching a Catalogue by Structure: A Working C...
Most suppliers let you search by name or CAS — which only helps if you already know what you want. NorrChemica's structure search lets you query the catalogue by drawn...
Phosphine Ligands for Cross-Coupling
A practical guide to choosing phosphine ligands for palladium cross-coupling — how to reason about electronics, sterics, and bite angle, and which ligand to actually reach for in Suzuki–Miyaura and...
Phosphine Ligands for Cross-Coupling
A practical guide to choosing phosphine ligands for palladium cross-coupling — how to reason about electronics, sterics, and bite angle, and which ligand to actually reach for in Suzuki–Miyaura and...