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Citation: Liu Yuming, Guo Fang, Dai Cuichen, Chen Zhendong, Hong Shunian. THE STRUCTURAL EFFECT OF POLYPHENOXY BENZNE COMPOUNDS——THE CRYSTAL STRUCTRE OF 1,4-BIPHENOXYBENZENE AND 1,4-BIS (4-METHOXYPHENOXY) BENZENE[J]. Acta Physico-Chimica Sinica, ;1989, 5(02): 141-144. doi: 10.3866/PKU.WHXB19890203 shu

THE STRUCTURAL EFFECT OF POLYPHENOXY BENZNE COMPOUNDS——THE CRYSTAL STRUCTRE OF 1,4-BIPHENOXYBENZENE AND 1,4-BIS (4-METHOXYPHENOXY) BENZENE

1.
Institute of Chemistry; Academia Sinica; Beijing, Department of Chemistry; Zhengzhou; University; Zhengzhou

Received Date: 27 July 1987
Available Online: 15 April 1989

The Crystal structure of 1,4-Biphenoxybenzene (Ⅰ) and 1,4-Bis (4-Methoxyphenoxy) benzene (Ⅱ) have been determined by X-ray diffraction method. For compound (Ⅰ) , the space group is P2_1/c; Its cell parameters are:a=5.876(2), b=7.832(2),c=6.5455(6)nm; β=95.33(3)~0; z=2.For compound (Ⅱ), the space group is Pcab; Its cell parameters are:a=6.017(1),b=7.577(1), c=3.6404 (5)nm;z=4.
The bond lengths,bond angles and molecular conformation indicate that:in these polyphenoxy benzene systems the conjugative polarization effect can not pass through the oxygen bridge to cover the whole molecule,
Such a strutctural feature explaines its small slope of the homolo us line for absorption peaks of polyphenoxy benzene series.
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