The purpose of this work is to discuss which relation can be established between molecular chemistry, on the one hand, and macrochemistry and nanochemistry, on the other hand. In order to do this, we will consider molecular chemistry as an underlying level, and macrochemistry and nanochemistry as emergent levels. Emergence is characterized in very different ways in the philosophical literature; we will not discuss those differences. We will address a distinction between inter-domain emergence and intra-domain emergence. It is our purpose to argue that, from a basal micro-molecular level, macrochemistry and nanochemistry emerge in parallel. The emergence of macrochemistry is an inter-domain emergence, while the emergence of the nanolevel is an intra-domain one. If this is the case, therefore macrochemistry and nanochemistry are not “successive” levels, but parallel ones. This discussion will be held from an ontological point of view, instead of the classical characterization in terms of scale.

这项工作的目的是讨论一方面可以建立分子化学与另一方面建立宏观化学和纳米化学之间的关系。为此，我们将分子化学视为基础水平，将宏观化学和纳米化学视为新兴水平。在哲学文献中，新兴的特征非常不同。我们不会讨论这些差异。我们将解决域间出现和域内出现之间的区别。我们的目的是论证，从基础的微分子水平来看，宏观化学和纳米化学是并行出现的。宏观化学的出现是域间的出现，而纳米级的出现是域内的出现。如果是这样，因此，宏观化学和纳米化学不是“成功的”水平，而是平行的水平。将从本体论的角度进行讨论，而不是从规模上进行经典表征。