Demo Kūlana Molecular

ʻO ka hau he aniani i hoʻokumu ʻia e ka hoʻonohonoho hoʻonohonoho o nā mole wai. Pili nā mole wai i nā pilina hydrogen e hana i kahi ʻoʻoleʻa "hāmama" (low-density). ʻO ka O — ʻO ka mokuna internuclear o ka mole wai kokoke loa he 0.276nm, a ʻo ka ʻaoʻao O — O — ʻO e pili ana i 109 °, kahi kokoke loa i ka ʻaoʻao paʻa o kahi tetrahedron kūpono o 109 ° 28 ′. Eia naʻe, ʻo ka spacing o ka wai o nā molekiola e pili wale ana akā ʻaʻole i hoʻopili pono ʻia ʻoi aku ka nui, a ʻo ka mea ʻoi loa ʻo 0.347 nm. Hiki i kēlā me kēia mole mole wai ke hui pū me 4 mau mole wai ʻē aʻe e hana i kahi kūkulu tetrahedral, no laila ʻo 4 ka nui o nā mole wai.