INFRARED SPECTRA OF CRYSTALLINE POLYSACCHARIDES .5. CHITIN
INFRARED SPECTRA OF CRYSTALLINE POLYSACCHARIDES .5. CHITIN
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DOI：
10.1002/pol.1960.1204314109
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发表时间：
1960-01-01
影响因子：
3.4
通讯作者：
LIANG, CY
中科院分区：
文献类型：
--
作者：
PEARSON, FG;MARCHESSAULT, RH;LIANG, CY
本文研究了蟹甲壳素微晶、绿头苍蝇幼虫表皮、龙虾腱和部分脱乙酰甲壳素的偏振红外光谱。此外，还获得了无定形脱乙酰甲壳素、氘代龙虾甲壳素和结晶N-乙酰化壳六糖的光谱，并进行了分析。谱带的归属是在纤维素和其他相关分子的研究基础上进行的。完整的分子间C → O → H → N氢键方案，最初由Carlstrom从X射线研究中提出，与红外数据一致。借助于甲壳素晶胞的比例模型，已经检查并讨论了涉及伯羟基的许多氢键方案。
The polarized infrared spectra of crab chitin crystallites, blowfly larval cuticle, lobster tendon, and partially deacetylated lobster chitin have been studied. In addition, the spectra of amorphous deacetylated chitin, deuterated lobster chitin and crystallineN‐acetylated chitohexaose were obtained and analyzed. Band assignments have been made with the aid of previous work on celluloses and other related molecules. The complete intermolecular CO‐‐‐‐HN hydrogen bonding scheme, orginally proposed by Carlstrom from x‐ray studies, is in agreement with the infrared data. With the aid of a scale model of the chitin unit cell, a number of hydrogen‐bonding schemes involving the primary hydroxyl group have been examined and are discussed.