The fact that ice is less dense than liquid water due to open-structured hydrogen bonding is a foundational physical property of water taught in basic science, and no retrieved papers directly address or test this specific comparative density mechanism.
The claim states a fundamental, textbook physical property of water (ice density vs. liquid water density governed by hydrogen bonding). This is common knowledge and requires no citation of specialized research papers. None of the retrieved papers specifically test or focus on the macroscopic density anomaly of ice compared to water, rendering them tangential.