On　the　basis　of　variable-temperature　single-crystal　X-ray　diffraction,　variable-temperature/frequency　dielectric　analysis,　variable-temperature　solid-state　nuclear　magnetic　resonance　spectroscopy,　and　molecular　dynamics　simulations,　here　we　present　a　new　model　of　crystalline　supramolecular　rotor　(i-PrNHMe2)[CdBr3],　where　a　conformationally　flexible　near-spherical　(i-PrNHMe2)+　cation　functions　as　a　rotator　and　a　rod-like　anionic　coordination　polymer　{[CdBr3]-}infinity　acts　as　the　stator,　and　the　adhesion　of　them　is　realized　by　charge-assisted　hydrogen　bonds.　A　new　model　of　crystalline　supramolecular　rotor　is　reported　here,　with　a　conformationally　flexible　tertiary　ammonium　cation　and　a　one-dimensional　rod-like　anionic　coordination　polymer　being　the　rotator　and　stator,　respectively.