Abstract: A method for capturing a substance having an anionic substituent by contacting a substance having an anionic substituent with a zinc complex such that the substance binds to the zinc complex, the zinc complex being represented by a formula (I): wherein each R is the same or different from each other and each R represents H; an alkyl group having 1 to 16 carbon atoms; an acyl group, a carboxyalkyl group, an acylalkyl group, a carbamoylalkyl group, a cyanoalkyl group, a hydroxyalkyl group, an aminoalkyl group or a haloalkyl group, wherein an alkyl portion of the acyl group, the carboxyalkyl group, the acylalkyl group, the carbamoylalkyl group, the cyanoalkyl group, the hydroxyalkyl group, the aminoalkyl group and the haloalkyl group has 1 to 16 carbon atoms; a carboxyl group; a carbamoyl group; a hydroxyl group; a cyano group; an amino group; or a halogeno group.

Abstract: A method for capturing a substance having an anionic substituent by contacting a substance having an anionic substituent with a zinc complex such that the substance binds to the zinc complex, the zinc complex being represented by a formula (I): wherein each R is the same or different from each other and each R represents H; an alkyl group having 1 to 16 carbon atoms; an acyl group, a carboxyalkyl group, an acylalkyl group, a carbamoylalkyl group, a cyanoalkyl group, a hydroxyalkyl group, an aminoalkyl group or a haloalkyl group, wherein an alkyl portion of the acyl group, the carboxyalkyl group, the acylalkyl group, the carbamoylalkyl group, the cyanoalkyl group, the hydroxyalkyl group, the aminoalkyl group and the haloalkyl group has 1 to 16 carbon atoms; a carboxyl group; a carbamoyl group; a hydroxyl group; a cyano group; an amino group; or a halogeno group.

Abstract: A zinc complex represented by formula (I-0): {wherein R may be the same or different from each other and represents H; an alkyl group having 1 to 16 carbon atoms; an acyl group, a carboxyalkyl group, an acylalkyl group, a carbamoylalkyl group, a cyanoalkyl group, a hydroxyalkyl group, an aminoalkyl group or a haloalkyl group (here, a carbon number at an alkyl portion of these groups is 1 to 16); a carboxyl group; a carbamoyl group; a hydroxyl group; a cyano group; an amino group or; a halogeno group (provided that all are Hs are excluded)} which is capable of capturing a substance having an anionic substituent.

Abstract: An object of the present invention is to provide a novel structure that enables one-dimensional arraying of metal atoms and can stably exist. The present invention relates to a double-stranded oligonucleotide derivative, which contains two oligonucleotide derivatives each containing at least one nucleotide derivative wherein a base portion of a nucleotide is substituted with a metal coordination group that is resistant to oxidation and metal atoms, wherein the double strands are formed by coordination of each metal coordination group contained in each oligonucleotide derivative to a metal atom so as to form a complex.

Abstract: The present invention relates to a double-stranded oligonucleotide derivative, which contains two oligonucleotide derivatives each containing at least one nucleotide derivative wherein a base portion of a nucleotide is substituted with a metal coordination group that is resistant to oxidation and metal atoms, wherein the double strands are formed by coordination of each metal coordination group contained in each oligonucleotide to a metal atom so as to form a complex.

Abstract: A zinc complex represented by formula (I-0): {wherein R may be the same or different from each other and represents H; an alkyl group having 1 to 16 carbon atoms; an acyl group, a carboxyalkyl group, an acylalkyl group, a carbamoylalkyl group, a cyanoalkyl group, a hydroxyalkyl group, an aminoalkyl group or a haloalkyl group (here, a carbon number at an alkyl portion of these groups is 1 to 16); a carboxyl group; a carbamoyl group; a hydroxyl group; a cyano group; an amino group or; a halogeno group (provided that all are Hs are excluded)} which is capable of capturing a substance having an anionic substituent.

Abstract: Provided is an artificial nucleic acid which has a double-stranded structure made of two oligonucleotides, where the oligonucleotide has in a sugar-phosphate backbone structure thereof a sugar moiety having a group having a metal-coordinating site, and the two oligonucleotides are bound together through a metal complex structure formed by coordination of the metal-coordinating site to a metal ion. Also provided is a nucleotide useful for synthesizing the artificial nucleic acid.

Abstract: Provided is an artificial nucleic acid which has a double-stranded structure made of two oligonucleotides, where the oligonucleotide has in a sugar-phosphate backbone structure thereof a sugar moiety having a group having a metal-coordinating site, and the two oligonucleotides are bound together through a metal complex structure formed by coordination of the metal-coordinating site to a metal ion. Also provided is a nucleotide useful for synthesizing the artificial nucleic acid.