Recent progress in the field of molecular magnetism has shown the clear potential for gaining control over the structural building blocks of molecular materials in order to engineer desirable magnetic properties. Low-dimensional Ni(II)-based S=1 antiferromagnets continue to draw much interest across the field of magnetism, but are generally quite poorly understood. We now wish to study three new Ni-based molecular antiferromagnets, which have been recently synthesised and which each show interesting properties with potential for tunability. In each case, we seek to investigate the nature of the magnetic ordering transition and make a study of the dynamics of the system in the temperature regime where the low-dimensional behaviour is expected.