Single Crystalline Alkaline-Earth Metal Hexaboride One-Dimensional (1D) Nanostructures: Synthesis and Characterization

2009 ◽  
Vol 21 (4) ◽  
pp. 763-770 ◽  
Author(s):  
Syed S. Amin ◽  
Shu-you Li ◽  
John R. Roth ◽  
Terry T. Xu
Keyword(s):  
Alkaline Earth ◽  
Earth Metal ◽  
Synthesis And Characterization ◽  
Alkaline Earth Metal ◽  
Single Crystalline ◽  
One Dimensional ◽  
1D Nanostructures

Magnesium, calcium and strontium salts of phenylacetic acid

2012 ◽  
Vol 68 (2) ◽  
pp. m29-m33 ◽  
Author(s):  
Jean-Baptiste Arlin ◽  
Alan R. Kennedy ◽  
Kenneth Shankland
Keyword(s):  
Alkaline Earth ◽  
Phenylacetic Acid ◽  
Bound Water ◽  
Earth Metal ◽  
Metal Salts ◽  
Alkaline Earth Metal ◽  
One Dimensional ◽  
Structural Types ◽  
Polymeric Chains ◽  
Inorganic Layers

Three alkaline earth metal salts of phenylacetic acid were examined and all were found to have similar structural types to analogous salts of benzoic and halobenzoic acids. Thus, a synchrotron study shows that the cations incatena-poly[[[tetraaquamagnesium(II)]-μ-phenylacetato-κ2O:O′] phenylacetate], {[Mg(C8H7O2)(H2O)4](C8H7O2)}n, form a one-dimensional coordination polymer that propagates through Mg—O—C—O—Mg interactions involving both crystallographically independent Mg centres (Z′ = 2) and through translation along theaaxis. The polymeric chains pack to give alternate inorganic layers and organic bilayers. The Ca and Sr speciescatena-poly[[[diaqua(phenylacetato-κ2O,O′)calcium(II)]-μ3-phenylacetato-1′:1:1′′κ4O:O,O′:O′] monohydrate], {[Ca(C8H7O2)2(H2O)2]·H2O}n, andcatena-poly[[[diaqua(phenylacetato-κ2O,O′)strontium(II)]-μ3-phenylacetato-1′:1:1′′κ4O:O,O′:O′] monohydrate], {[Sr(C8H7O2)2(H2O)2]·H2O}n, are essentially isostructural. Both form one-dimensional coordination polymers through a carboxylate group that forms fourM—O bonds. The polymeric chains propagatevia21screw axes parallel to thebaxis and are further linked in thebcplane by hydrogen bonding involving the non-metal-bound water molecule. Similarly to the Mg salt, both have inorganic layers that alternate with organic bilayers.

Synthesis of Single-Crystalline Alkaline-Earth Metal Manganites Nanoribbons via Cation Exchange

2011 ◽  
Vol 11 (7) ◽  
pp. 2852-2857 ◽  
Author(s):  
Xianke Zhang ◽  
Zhibing Xu ◽  
Shaolong Tang ◽  
Yu Deng ◽  
Youwei Du
Keyword(s):  
Cation Exchange ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Single Crystalline

Alkaline earth metal salts of 1-naphthoic acid

2012 ◽  
Vol 68 (8) ◽  
pp. m213-m218 ◽  
Author(s):  
Jean-Baptiste Arlin ◽  
Alan R. Kennedy
Keyword(s):  
Alkaline Earth ◽  
Earth Metal ◽  
Metal Salts ◽  
Alkaline Earth Metal ◽  
Carboxylate Group ◽  
One Dimensional ◽  
Naphthoic Acid ◽  
Polymeric Chains ◽  
The Common ◽  
Channel Structures

The structures of the Mg, Ca, Sr and Ba salts of 1-naphthoic acid are examined and compared with analogous structures of salts of benzoate derivatives. It is shown thatcatena-poly[[[diaquabis(1-naphthoato-κO)magnesium(II)]-μ-aqua] dihydrate], {[Mg(C11H7O2)2(H2O)3]·2H2O}n, exists as a one-dimensional coordination polymer that propagates only through Mg—OH2—Mg interactions along the crystallographicbdirection. In contrast with related benzoate salts, the naphthalene systems are large enough to prevent inorganic chain-to-chain interactions, and thus species with inorganic channels rather than layers are formed. The Ca, Sr and Ba salts all have metal centres that lie on a twofold axis (Z′ = 1 \over 2) and all have the common namecatena-poly[[diaquametal(II)]-bis(μ-1-naphthoato)-κ3O,O′:O;κ3O:O,O′], [M(C11H7O2)2(H2O)2]n, whereM= Ca, Sr or Ba. The Ca and Sr salts are essentially isostructural, and all three species form one-dimensional coordination polymers through a carboxylate group that forms threeM—O bonds. The polymeric chains propagatevia c-glide planes and throughMOMO four-membered rings. Again, inorganic channel structures are formed rather than layered structures, and the three structures are similar to those found for Ca and Sr salicylates and other substituted benzoates.

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