Spectroscopic studies of the equilibrium between complexes of lasalocid acid with propargylamine and metal cations.The molecular structure of 1:1 complex formed between the naturally occurring polyether ionophore, called lasalocid acid (LAS) and propargylamine (PROP) is studied by X-ray, FT-IR, (1)H NMR, (13)C NMR and ESI-MS methods. 
X-ray
Spectroscopic studies of the equilibrium between complexes of lasalocid acid with propargylamine and metal cations.The molecular structure of 1:1 complex formed between the naturally occurring polyether ionophore, called lasalocid acid (LAS) and propargylamine (PROP) is studied by X-ray, FT-IR, (1)H NMR, (13)C NMR and ESI-MS methods.  The similarity of the FT-IR spectra of the LAS-PROP complex in solid state and in solution demonstrated that the molecular structures of the complex in both states are comparable. 
FT-IR
Spectroscopic studies of the equilibrium between complexes of lasalocid acid with propargylamine and metal cations.The molecular structure of 1:1 complex formed between the naturally occurring polyether ionophore, called lasalocid acid (LAS) and propargylamine (PROP) is studied by X-ray, FT-IR, (1)H NMR, (13)C NMR and ESI-MS methods. 
(1)H NMR
Spectroscopic studies of the equilibrium between complexes of lasalocid acid with propargylamine and metal cations.The molecular structure of 1:1 complex formed between the naturally occurring polyether ionophore, called lasalocid acid (LAS) and propargylamine (PROP) is studied by X-ray, FT-IR, (1)H NMR, (13)C NMR and ESI-MS methods. 
(13)C NMR
Spectroscopic studies of the equilibrium between complexes of lasalocid acid with propargylamine and metal cations.The molecular structure of 1:1 complex formed between the naturally occurring polyether ionophore, called lasalocid acid (LAS) and propargylamine (PROP) is studied by X-ray, FT-IR, (1)H NMR, (13)C NMR and ESI-MS methods. 
ESI-MS