SYNTHESIS, CHARACTERIZATION AND CRYSTAL STRUCTURES OF TWO NEW PHENOLIC MANNICH BASES

被引：5

作者：

Ayeni, Ayowole O. ^{[1
,2
]}

Watkins, Gareth M. ^{[1
]}

Hosten, Eric C. ^{[3
]}

机构：

[1] Rhodes Univ, Dept Chem, Grahamstown, South Africa

[2] Obafemi Awolowo Univ, Dept Chem, Ife, Nigeria

[3] Nelson Mandela Univ, Dept Chem, Port Elizabeth, South Africa

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA | 2019年 / 33卷 / 02期

关键词：

Mannich base; Piperazine; X-ray diffraction; Hydrogen bonds; FE(III) COMPLEXES; THIOCYANATE; CU(II);

D O I：

10.4314/bcse.v33i2.14

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two new Mannich bases, 5-methyl-2((4-(pyridin-2-yl)piperazin-l-yl)methyl)phenol (1) and 5methyl-2-((4-(4-nitrophenyl)piperazin-1 -yl)methyl)phenol (2), were prepared and characterized structurally with elemental analysis, IR, UV and NMR spectroscopic techniques as well as single crystal X-ray diffraction. Compound I crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 6.6726(2) angstrom, b = 17.0542(6) angstrom, c = 13.3222(4) angstrom, beta = 100.832(1)degrees, V = 1489.00 (8) angstrom(3), Z = 4, R-1 = 0.0408, wR(2) = 0.1143. Compound II crystallizes in the monoclinic space P21 with unit cell dimensions a = 5.9519(2) angstrom, b = 17.3315(8) angstrom, c = 15.7237(7) angstrom, beta = 90.348(2)degrees, V = 1621.95(12) angstrom(3), Z = 4, R-1 = 0.0353, wR(2) = 0.0965. Both compounds have their structures stabilized by hydrogen bonding and pi...pi interactions.

引用

页码：341 / 348

页数：8

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