广州大学学报:自然科学版
廣州大學學報:自然科學版
엄주대학학보:자연과학판
Journal og Guangzhou University:Natural Science Edition
2012年
1期
21-26
,共6页
周爱菊%陈冠潜%梁晶晶%陈汇勇%麦绮雯%李敏
週愛菊%陳冠潛%樑晶晶%陳彙勇%麥綺雯%李敏
주애국%진관잠%량정정%진회용%맥기문%리민
酸碱调控%二核铁%晶体结构%三维配位网络%叠氮桥连
痠堿調控%二覈鐵%晶體結構%三維配位網絡%疊氮橋連
산감조공%이핵철%정체결구%삼유배위망락%첩담교련
acid/base control%binuclear iron (III) crystal structure 3 D coordination network azide-bridged
多齿配体N,N,N’,N’一四羟乙基乙二胺(简写为H4edte)和Fe(C10。)3-9H20或FeCl3’6H20在MeOH或MeOH/MeCN(体积比6:1)的溶液中合成了一个二核铁配合物[Fe:(H:edte):](C104)2(1)和一个有斗μ1,3-叠氮桥连的含NaCl型结构的三维配位聚合物(NMe。)2[FeNa(N3)6](2).x一射线晶体学表征结果显示,配合物1是个二核铁配合物,属于单斜晶系,空间群P2,/c,a=0.074401(9)nm,b=1.20539(1g)nm,c=1.7575(2)nm,d=T=90°,β=97.562(2)。,V=1.5627(3)nm3,Z=2;配合物2属于立方晶系,空间群尸2(1)3:a=b=C=1.27509(6)nm,α=β=y=90。,V=2.07311(17)nm’,Z=12.配合物1的结构中多齿配体H4edte只脱了两个醇羟基中的质子,且有一个醇羟基没有与金属配位.配合物2属于立方晶系,空间群为尸2(1)3,在配合物2中,多齿配体H。edte并未参与配位,只起到调节溶液酸碱性的作用,大阳离子NMe4+则通过微弱的氢键与Fe一(μ1,3,-Nj)-Na组成的框架作用,起到了稳定框架的模板作用.
多齒配體N,N,N’,N’一四羥乙基乙二胺(簡寫為H4edte)和Fe(C10。)3-9H20或FeCl3’6H20在MeOH或MeOH/MeCN(體積比6:1)的溶液中閤成瞭一箇二覈鐵配閤物[Fe:(H:edte):](C104)2(1)和一箇有鬥μ1,3-疊氮橋連的含NaCl型結構的三維配位聚閤物(NMe。)2[FeNa(N3)6](2).x一射線晶體學錶徵結果顯示,配閤物1是箇二覈鐵配閤物,屬于單斜晶繫,空間群P2,/c,a=0.074401(9)nm,b=1.20539(1g)nm,c=1.7575(2)nm,d=T=90°,β=97.562(2)。,V=1.5627(3)nm3,Z=2;配閤物2屬于立方晶繫,空間群尸2(1)3:a=b=C=1.27509(6)nm,α=β=y=90。,V=2.07311(17)nm’,Z=12.配閤物1的結構中多齒配體H4edte隻脫瞭兩箇醇羥基中的質子,且有一箇醇羥基沒有與金屬配位.配閤物2屬于立方晶繫,空間群為尸2(1)3,在配閤物2中,多齒配體H。edte併未參與配位,隻起到調節溶液痠堿性的作用,大暘離子NMe4+則通過微弱的氫鍵與Fe一(μ1,3,-Nj)-Na組成的框架作用,起到瞭穩定框架的模闆作用.
다치배체N,N,N’,N’일사간을기을이알(간사위H4edte)화Fe(C10。)3-9H20혹FeCl3’6H20재MeOH혹MeOH/MeCN(체적비6:1)적용액중합성료일개이핵철배합물[Fe:(H:edte):](C104)2(1)화일개유두μ1,3-첩담교련적함NaCl형결구적삼유배위취합물(NMe。)2[FeNa(N3)6](2).x일사선정체학표정결과현시,배합물1시개이핵철배합물,속우단사정계,공간군P2,/c,a=0.074401(9)nm,b=1.20539(1g)nm,c=1.7575(2)nm,d=T=90°,β=97.562(2)。,V=1.5627(3)nm3,Z=2;배합물2속우립방정계,공간군시2(1)3:a=b=C=1.27509(6)nm,α=β=y=90。,V=2.07311(17)nm’,Z=12.배합물1적결구중다치배체H4edte지탈료량개순간기중적질자,차유일개순간기몰유여금속배위.배합물2속우립방정계,공간군위시2(1)3,재배합물2중,다치배체H。edte병미삼여배위,지기도조절용액산감성적작용,대양리자NMe4+칙통과미약적경건여Fe일(μ1,3,-Nj)-Na조성적광가작용,기도료은정광가적모판작용.
Abstract: Reactions of N, N, N', N'-tetrakis (2-hydroxyethyl) ethylenediamine (Hgedte) with Fe ( CIO4 ) 3 9H20 or FeC13 6H20 in MeCN or MeCN/MeOH (v/v: 6:1 ) with different bases yield one binuclear iron clusters and one 3D complex with 4,4-net : [ Fe2 (Hzedte) 2 ] ( C1Q ) 2 ( 1 ) ( Haedte = N, N, N', N'-tetrakis(2- hydroxyethyl) ethylenediamine) and ( NMe4 ) 2 [ FeNa ( N3 ) 6 ] ( 2 ) X-ray diffraction crystal structure analysis shows that complex 1 crystallizes in monoelinic system, space group P2~/c with a = 0. 074 401 (9) nm, b = 1.205 39(14)nm, c--1.757 5(2)nm, a =y= 90~, /3=97.562(2)~, V=1.562 7(3) nm3, Z=2. Com- plex 2 crystallizes in cubic system, space group P2 ( I ) 3 with a = b = c = i. 275 09 (6) nm, ct =/3 = Y = 90~, V=2. 073 11 (17) nm3, Z = 12. In the formation of the complex 1, the hexadentate H2edte2- ligand acts in a similar ix: coordination mode to bridge two metal ions and two hydroxyl groups in Hzedte2- ligand have not been dehydrogenized. Besides, one hydroxyl group in the ligand keeps non-coordination. In Complex 2, hexadentate H4edte ligand only adjusts the pH of the solution. However, N3 ions adopt/x1.3 coordination mode and NMe4 ions act as template in the framework by weak hydrogen bond.