In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Separation of square planar complexes by thin layer chromatography, published in 1966, which mentions a compound: 15227-42-6, mainly applied to PYRIDINE COMPLEX CHROMATOG; THIN LAYER CHROMATOG; CHROMATOG SEPN SQUARE PLANAR COMPLEX; PLATINUM COMPLEX CHROMATOG; PALLADIUM COMPLEX CHROMATOG; SEPN SQUARE PLANAR COMPLEX, Name: cis-Dichlorobis(pyridine)platinum(II).
Uncharged sq. planar Pt and Pd complexes were separated by using plates with a 100 μ coating of silica gel bound by poly(vinyl alc.) and activated for 30 min. at 115°. The solvent was HCCl3 containing 3 drops Me2SO per 100 ml. Typical Rf values are given. Separation of cis- and trans-Ptpy2X2 (X = Cl, Br) was particularly successful, while cis- and trans-Pt(NH3)2Cl2 could not be separated The mechanism of separation appears to be via surface adsorption. Layer thickness, activation conditions, and solvent travel time are therefore very critical
From this literature《Separation of square planar complexes by thin layer chromatography》,we know some information about this compound(15227-42-6)Name: cis-Dichlorobis(pyridine)platinum(II), but this is not all information, there are many literatures related to this compound(15227-42-6).
Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem